what an infinite slab of thickness 2d which made of insu- lating material contains an immobile charge density?
Answers
An infinite slab of insulating material with an immobile charge density will have a uniform electric field within its interior, perpendicular to the surfaces, and a magnitude of ρ/ε.
An infinite slab of insulating material with an immobile charge density is a simple electrostatics problem that can be solved using Gauss's law. The slab is assumed to be infinitely large in two dimensions and to have a uniform charge density throughout its thickness, which we will call ρ.Because the charge is immobile, there will be no electric field outside of the slab.
Inside the slab, however, there will be a uniform electric field, perpendicular to the surfaces of the slab.The magnitude of the electric field inside the slab can be calculated using Gauss's law, which relates the electric flux through a closed surface to the charge enclosed within that surface.
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Related Questions
What is the scientific method and what the second step of the scientific ? If you answer the question right you will get a 5 star and a brainly
Answers
Answer:
a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.
Explanation:
the scienticif Method and the second step of the scientific
How do scientists classify matter
according to their physical and
chemical makeup ?
Answers
Answer:
Matter can be classified according to
physical and chemical properties. Matter is anything that occupies space and has mass. The three states of matter are solid, liquid, and gas. ... Pure substances can be either chemical compounds or elements.
1) If you transfer energy into two solid substances, which do you think would melt first: a substance with stronger molecular attraction or a substance with weaker molecular attraction?
2) If you transfer energy out of two substances in the gas phase, which do you think would condense first: a substance with stronger molecular attraction or a substance with weaker molecular attraction?
PLEASE HELP
Answers
Answer:
1) A substance with a weaker molecular attraction would melt first.
2) A substance with stronger molecular attraction would condense first.
The first substance to melt is one with a lesser molecular attraction. The first substance to condense would be one with greater molecular attraction.
What is molecular attraction?Molecular attraction is defined as the distance between molecules at which their mutual forces become noticeably significant. The distance between two molecules at which the forces acting between them are of observable magnitude is known as the range of molecular attraction. The forces weaken as the molecular distance increases, eventually becoming insignificant.
In comparison to solids, liquids have a greater intermolecular distance. In other words, when something melts, the molecules spread apart more. As a result, intermolecular forces of attraction become weaker. First, a condensed molecular substance must be appealing. Gas molecules become more attracted to one another due to the increasing demand, which also increases the CE between molecules.
Thus, the first substance to melt is one with a lesser molecular attraction. The first substance to condense would be one with greater molecular attraction.
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A metal of relative mass of 27 is deposited by electrolysis. If 0. 176g of metal is deposited on the cathode 0. 15A flows for 3. 5hours. What is the magnitude of the charge on the cation of the metal
Answers
According to the question, the magnitude of the charge on the cation of the metal is 0.0024 C.
What is Faraday's Second Law?
Faraday's law of electrolysis, which says that the amount of material created at an electrode during electrolysis is proportionate to the amount of electricity passing through it, may be used to compute the charge on the metal cation. The following formula may be used to determine the charge on the cation:
Charge on a cation is calculated as follows: (Current x Time x Atomic mass) / (Number of electrons x Faraday constant).
Since this is a divalent metal, the atomic mass is 27 g/mol, the time is 3.5 hours or 12600 seconds, the current is 0.15 A, the number of electrons is 2, and the Faraday constant is 96500 C/mol.
When we enter these values into the formula, we obtain:
Charge on the cation equals (0.15 A x 12600 s x 27 g/mol) / (2 x 96500 C/mol) = 0.0024 C
Therefore, the magnitude of the charge on the cation of the metal is 0.0024 C.
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In an experiment to estimate the enthalpy change of a reaction, a student makes two aqueous solutions, each containing one of the reactants. The student combines the solutions, both originally at the same temperature, in a calorimeter and records the final temperature of the mixture. In addition to the masses of the solutions and the temperature change of the mixture, which of the following pieces of information does the student need to calculate the enthalpy change of the reaction? why?
A) The boiling point of the reaction mixture
B) The heat of fusion of the reaction mixture
C) The density of the reaction mixture
D) The specific heat capacity of the reaction mixture
Answers
Based on the formula for calculating quantity of Heat, the student requires the mass, temperature change and the specific heat capacity of the reaction mixture.
What is enthalpy change of a reaction?The enthalpy change of a reaction is the amount of heat evolved or absorbed when reactant molecules react to form products.
In the use of a calorimetry to determine the enthalpy of a reaction, the law of conservation of energy is applied.
Heat lost = Heat gainedThe quantity of Heat is calculated using the formula below:
Quantity of Heat = mass × specific heat capacity × temperature cahangeTherefore, in addition to the masses of the solutions and the temperature change, the student requires the specific heat capacity of the reaction mixture.
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3. How many grams of magnesium ion are in 155.0 grams of Mg3P2?
Answers
Answer:
83.82 g of magnesium ions.
Explanation:
We want to determine the mass of magnesium ions in 155.0 grams of magnesium phosphide (Mg₃P₂).
We can convert from grams of Mg₃P₂ to moles of Mg₃P₂, moles of Mg₃P₂ to moles of Mg, and moles of Mg to grams of Mg.
Find the molecular weight (molar mass) of magnesium phosphide:
\(\displaystyle \begin{aligned}\text{MW}_\text{Mg$_3$P$_2$} &= \left(3(24.31)+2(30.97)\right) \text{ g/mol} \\ \\ &= (72.93 + 61.94) \text{ g/mol} \\ \\ &= 134.87 \text{ g/mol}\end{aligned}\)
The molecular weight of magnesium is 24.31 g/mol*.
From the chemical formula, we can see that there are three moles of magnesium for every one mole of magnesium phosphide.
Hence, multiply initial amount with known ratios:
\(\displaystyle \begin{aligned} &155.0 \text{ g Mg$_3$P$_2$} \cdot \frac{1 \text{ mol Mg$_3$P$_2$}}{134.87\text{ g/mol}} \cdot \frac{3\text{ mol [Mg$^{2+}$]}}{1 \text{ mol Mg$_3$P$_2$}}\cdot \frac{24.31 \text{ g [Mg$^{2+}$]}}{1 \text{ mol [Mg$^{2+}$]}}\\ \\ & = 83.82 \text{ g [Mg$^{2+}$]}\end{aligned}\)
In conclusion, there are 83.82 grams of magnesium ions in 155.0 grams of magnesium phosphide.
*Because the magnesium ions in magnesium phosphide have two less electrons, its molecular weight will indeed be lower. However, due to the extremely small size of an electron (1/2000th of a proton), the difference in mass is insignificant.
What is "the cloud"?
A. The delivery of services and storage of data on multiple servers
using the Internet
B. A computer that provides services to and stores data but cannot
be accessed by other computers
O c. A system of devices that can communicate with one another
through analog signals sent through wires
D. A way to send analog data from one specific computer to another
computer that stores it as digital data
Answers
A
Explanation:
no proof just to know I'm internet gal
does sodium chloride retain any characteristic of sodium or chlorine?
Answers
Answer:
When this occurs, sodium will donate an electron (which is a negatively-charged particle) to chlorine. This makes sodium slightly positive and chlorine slightly negative. Opposite charges attract, right? So then, sodium ions will attract chloride ions and form an ionic bond.
Explanation:
Which conversion factor do you use first to calculate the number of grams of FeCl3 produced by the reaction of 30.3 g of Fe with Cl2? 2 Fe + 3 CI2-› 2 FeCl3
Answers
The conversion factor of 1 mole of FeCl₃ = 162.20 g will be used first, to calculate the no. of grams of FeCl₃ produced by a reaction of 30.3 g of iron with Cl₂.
To calculate the number of grams of FeCl₃ produced, you need to use the conversion factor that relates the amount of FeCl₃ produced to the amount of Fe used in the reaction.
The balanced chemical equation provided is;
2 Fe + 3 Cl₂ → 2 FeCl₃
From the equation, you can see that the stoichiometric ratio between Fe and FeCl₃ is 2:2, meaning that 2 moles of Fe produce 2 moles of FeCl₃.
To convert the mass of Fe to moles, you need to use the molar mass of Fe. The molar mass of Fe is approximately 55.85 g/mol.
Let's calculate the number of moles of Fe
Number of moles of Fe = Mass of Fe / Molar mass of Fe
= 30.3 g / 55.85 g/mol
Now, since the stoichiometric ratio between Fe and FeCl₃ is 2:2, the number of moles of FeCl₃ produced will be the same as the number of moles of Fe.
Finally, to convert the moles of FeCl₃ to grams, you can use the molar mass of FeCl₃. The molar mass of FeCl₃ is approximately 162.20 g/mol.
Number of grams of FeCl₃ produced = Number of moles of FeCl₃ × Molar mass of FeCl₃
Therefore, to calculate the number of grams of FeCl₃ produced, you would use the conversion factor of 1 mole of FeCl₃ = 162.20 g.
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A tank whose volume is 100 gallons initially contains 50 gallons of pure water. A solution containing 8 grams of salt per gallon flows into the tank at a rate of 3 gallons per minute. The well stirred mixture flows out at a rate of 2 gallons per minute. Find the concentration of the salt in the tank when water starts to overflow.
Answers
The concentration of salt in the tank when water starts to overflow is 12 grams per gallon.
To find the concentration of salt in the tank when water starts to overflow, we need to determine the amount of salt in the tank at that point and divide it by the total volume of water.
First, let's calculate the amount of salt that flows into the tank per minute:
8 grams of salt per gallon * 3 gallons per minute = 24 grams of salt per minute.
Next, let's calculate the amount of water that flows out of the tank per minute:
2 gallons per minute.
The net change in the volume of water in the tank per minute is:
3 gallons per minute - 2 gallons per minute = 1 gallon per minute.
Since the initial volume of water in the tank is 50 gallons and the net change in volume is 1 gallon per minute, the time it takes for the water to overflow is:
(100 gallons - 50 gallons) / 1 gallon per minute = 50 minutes.
Therefore, after 50 minutes, the tank will overflow.
To find the concentration of salt in the tank at that point, we need to calculate the total amount of salt in the tank after 50 minutes:
24 grams per minute * 50 minutes = 1200 grams.
The total volume of water in the tank is 100 gallons, and since the tank overflows after 50 minutes, the amount of water in the tank is 100 gallons.
Therefore, the concentration of salt in the tank when water starts to overflow is:
1200 grams / 100 gallons = 12 grams per gallon.
So, the concentration of salt in the tank when water starts to overflow is 12 grams per gallon.
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Someone pls help me I will mark you as brain
Answers
Answer:
i think so 4 one ................. .group viia elements are very active non metals give reason
Answers
Answer:
because they need only one electron
what is the law of conservation of mass for the chemical equation 60g+40g=100g
Answers
Explanation:
The law of conservation of mass states that in a closed system, matter can neither be created nor destroyed. This means that the total mass of substances before and after a chemical reaction must remain the same. Therefore, for your given equation of 60g + 40g = 100g, we can see that the law of conservation of mass has been upheld as the total mass before (60g + 40g) and after (100g) the reaction is the same.
pls help with my science homework
continuation-
a) The graph shows that the substance takes longer to boil then melt suggest a reason for this?
b) Sketch a rough heating curve for pure water
Answers
a) The graph shows that the substance takes longer to boil than to melt. One reason for this is that boiling requires more energy than melting.
b) The heating curve of pure water shows the changes in temperature as water is heated. When water is initially heated, it absorbs heat energy, causing its temperature to rise until it reaches its boiling point.
a. When a substance melts, its particles absorb energy, causing the bonds between them to weaken and eventually break, causing the substance to transition from a solid to a liquid state. However, during boiling, not only must the particles absorb energy to break their bonds, but they must also overcome the pressure of the surrounding atmosphere, which keeps them in their liquid state. This means that boiling requires more energy than melting, which is why it takes longer for a substance to boil than to melt.
b. As water continues to be heated, it undergoes a phase transition from a liquid to a gas, with its temperature remaining constant during this process. Once all of the water has boiled off, the temperature begins to rise again as the energy is absorbed by the container or the surrounding environment.In a heating curve of pure water, the x-axis represents temperature, while the y-axis represents heat energy. The curve starts at the initial temperature of the water, then rises until it reaches the boiling point. At the boiling point, the curve remains horizontal until all of the water has boiled off. After this, the curve rises again, showing the energy absorbed by the container or environment. The curve will be similar to an inverted U-shape, with a flat portion in the middle.
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In Experiment 2 a gas is produced at the negative electrode.
Name the gas produced at the negative electrode.
Answers
In Experiment 2, the gas produced at the negative electrode is typically hydrogen (H2).
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Potassium permanganate, KMnO4, is both effective at treating water and has medicinal uses. A certain solution of KMnO4 being prepared to treat water has a concentration of 16.23%( m/v). Calculate the molar concentration of 16.23%( m/v) Potassium permanganate. Your Answer: Answer units Excess aluminum nitrate is mixed with 425.6 mL of sodium sulfite at a concentration of 0.639 mol/L. If the reactions has a 36.44% yield, what is the mass of dry precipitate actually collected? Your Answer: Answer units What volume (in mL ) of 0.427 mol/L sodium hydroxide, NaOH (aq), is needed to completely neutralize 75.0 mL of 0.233 mol/L hydrochloric acid, HCl(aq) ? Your Answer: Answer units
Answers
To calculate the molar concentration of a 16.23% (m/v) solution of potassium permanganate (KMnO4), we need to convert the percentage concentration to grams and then calculate the molarity.
Given:
Concentration of KMnO4 solution = 16.23% (m/v)
This means that 16.23 grams of KMnO4 are present in 100 mL of solution.
To calculate the molar concentration, we need to convert grams to moles. The molar mass of KMnO4 is:
Molar mass of KMnO4 = 39.10 g/mol (K) + 54.94 g/mol (Mn) + (4 × 16.00 g/mol) (4 × O) = 158.04 g/mol
Now, we can calculate the molar concentration:
Molarity = (grams of solute / molar mass of solute) / volume of solution
Molarity = (16.23 g / 158.04 g/mol) / 0.1 L = 0.1028 mol/L
Therefore, the molar concentration of the 16.23% (m/v) potassium permanganate solution is approximately 0.1028 mol/L.
For the other two questions, I would need the balanced chemical equations for the reactions involved to provide accurate answers.
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Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answers
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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10 sentence Summary about the Seasons on Earth
Answers
Seasons on the Earth can be defined as the period or time of year which is characterized by several factors like weather, and temperature occurring. The tilt of the Earth's axis causes the seasons.
Earth has four types of seasons namely - Summer season, Rainy season, Autumn season, and Winter season.
Summer season starts in the month of April and lasts till the month of June. It is usually the hottest season out of all four seasons. The days are longer and the nights are shorter in this season.
The second season is the Rainy season which arrives in the month of June and last till the month of September. This season is the Wet season of the year because in rainy seasons there are rain showers all over. It is also known as the Monsoon season. As the monsoon arrives, there is relief from high daytime temperatures and night temperature also drops. Monsoons are important for vegetation to grow and also important for human beings.
The third season is the Autumn season which begins after the monsoon season and ends before the winter season. This is in the month of September till the end of October. The length of day and night are equal.
The last season on the Earth is the Winter season. This season occurs after the Autumn season and before the arrival of Spring. Winter is the coldest season of the year. The length of nights is longer than the length of days in the winter season.
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Which of the following isotopes would deflect the most in a mass spectrometer?
a) Sr-84
b) Sr-86
c) Sr-87
d) Sr-88
Answers
The correct answer is Sr-84. The lightest specie is the most deflected while the heaviest specie is the least deflected.
In mass spectroscopy, chemical substances can be identified by looking at their respective mass-to-charge ratios of gaseous ions in electric and magnetic fields. The is achieved using a mass spectrometer.
The lightest specie undergoes the greatest deflection while the heaviest specie undergoes the heaviest deflection accordingly in a mass spectrometer.
In this case, Sr-84, is the lightest specie hence it should be the least deflected specie.
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if a block weighs 125 grams and it has a volume of 5 mL, what is it's density?
Answers
1
The compound PCI, decomposes into Cl₂ and PCI3. The equilibrium of PCIs(g) = Cl₂(g) + PC3(g) has a Keq of 2.24 x 10-²
at 327°C. What is the equilibrium concentration of Cl₂ in a 1.00 liter vessel containing 0.235 mole of PCls and 0.174 mole
of PCI3? Remember to use the correct number of significant digits.
Cl₂ =
Are the products or reactants favored?
Answers
Answer:
Explanation:
The equilibrium constant expression for the given reaction is:
Keq = [Cl₂][PCI₃] / [PCl₃]
We are given the equilibrium constant (Keq) as 2.24 x 10^-2 at 327°C, as well as the initial concentrations of PCl₃ and PCI₃. We need to determine the equilibrium concentration of Cl₂.
Let's assume that the change in concentration of PCl₃ is -x, the change in concentration of Cl₂ is +x, and the change in concentration of PCI₃ is +x, at equilibrium. Then, the equilibrium concentrations are:
[PCl₃] = 0.235 - x
[Cl₂] = x
[PCI₃] = 0.174 + x
Substituting these expressions into the equilibrium constant expression, we get:
2.24 x 10^-2 = (x)(0.174 + x) / (0.235 - x)
Simplifying and rearranging this equation, we get a quadratic equation:
2.24 x 10^-2 (0.235 - x) = x (0.174 + x)
0.00526 - 2.24 x 10^-2 x = 0.174x + x^2
x^2 + 0.138x - 0.00526 = 0
We can solve this quadratic equation to find the value of x:
x = 0.046 M (rounded to 3 significant digits)
Therefore, the equilibrium concentration of Cl₂ is 0.046 M, which is the same as the change in concentration of Cl₂.
Since the equilibrium concentration of Cl₂ is greater than zero, this means that the products (Cl₂ and PCI₃) are favored at equilibrium.
Which organisms are producers?
Choose all correct answers.
tree
grass
monkey
mold
Answers
Answer: Tree and Grass are the two correct answers here
Explanation: Producers are photosynthesizing organisms. They are any kind of green plant that make their food by taking sunlight and using the energy to make sugar.
Answer:
Tree, grass
Explanation:
Producers make their own food. Trees and grass can make their own food using sunlight (photosynthesis). Monkey is consumer (eats other things like bananas- made by plants - for survival). Mold (like fungus) eat dead stuff and thus are decomposers (not producers).
20 points
Which of the following objects below is NOT needed to test electrical conductivity?
battery
object powered by electricity
insulated wire
electrical tape
Answers
Answer:
I`m pretty sure it`s electrical tape.
Explanation:
The objects which does not conduct electricity are called insulators which are not needed to test electrical conductivity. Hence, insulated wire is the correct option.
What is conductivity ?Conductivity of a substance is the ability to conduct electrically or thermally through the substance. Based on their conductivity, there are three classes of materials conductors, semiconductors and insulators.
Conductors are materials conducting heat and electricity at all temperatures. Semiconductors conduct only at higher temperature or on doping. Insulators are material does not conduct at any condition.
Metals are good conductors. Silicon , germanium etc. are semiconductors. Whereas, wood, plastic etc. are insulators they does not allow flow of electrons through it. Therefore, an insulated wire is not needed to test conductivity.
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9. In what year does the Russian chemist Dimitri Mendeleev started the
development of the periodic table, arranging chemical elements by atomic
mass?
A. 1866
B. 1867
C. 1868
D. 1869
10. How many elements are there in the formula: Ca(OH).
B. 3
C. 7
D. 8
Answers
Answer:
a
9. In what year does the Russian chemist Dimitri Mendeleev started the
development of the periodic table, arranging chemical elements by atomic
mass?
A. 1866
B. 1867
C. 1868
D. 1869✓
10, this explanation maybe help you
Answer:
5
Explanation:
Ca is 1 since there is no subscript and O and H each have 2 because the subscript 2 is outside the parenthesis.
i. e. 1 Ca + 2 O + 2 H = 5 atoms
Hope this helps
Arrange mgcl2,Nacl and Alcl3 in order of increasing solubility giving re
asons
Answers
Answer:g
Explanation:g
when a gallium spoon turns into a liquid is it chemical or physical
Answers
When a gallium spoon turns into a liquid, it is a physical change rather than a chemical change.
A physical change involves a transformation in the physical state or appearance of a substance without altering its chemical composition. In the case of the gallium spoon, it undergoes a physical change from a solid state to a liquid state as it is heated. The change in temperature causes the gallium atoms to gain enough energy to overcome their attractive forces and transition into a liquid form.
The chemical composition of gallium remains the same before and after the phase change. Therefore, the transformation of a gallium spoon from a solid to a liquid is classified as a physical change.
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Using intense physical or chemical methods to clear and repair severely degraded or barren sites is called
Answers
Intense physical or chemical methods of land restoration of severely degraded or barren sites refer to the process of bioremediation.
Bioremediation is a biological method used to reverse the damage caused by pollution, deforestation, overgrazing, and other activities that negatively affect the land. Bioremediation is an eco-friendly approach to land restoration that involves the use of microorganisms to transform toxic compounds into less harmful substances, thereby reducing their impact on the environment. This method ensures that harmful chemicals are broken down into less toxic products.
One of the advantages of bioremediation is its cost-effectiveness and ease of application. It does not require heavy machinery, making it accessible and feasible for restoring land in various settings. Additionally, bioremediation is considered a sustainable solution due to its reliance on natural processes and the use of microorganisms.
Bioremediation is classified into two categories: in situ bioremediation and ex situ bioremediation. In situ bioremediation involves the application of microorganisms directly into the contaminated site, allowing them to degrade the pollutants in their natural environment. On the other hand, ex situ bioremediation involves the removal of contaminated soil from the site and treating it in a bioreactor or an off-site facility.
In summary, bioremediation offers a viable and environmentally friendly approach to restore severely degraded or barren sites. By harnessing the power of microorganisms, bioremediation can transform toxic compounds into less harmful substances, contributing to the rehabilitation of land affected by pollution and other detrimental activities.
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It required 15 cm° of 0.05 mol/dm° sulfuric acid to neutralise 25 cm° of potassium hydroxide. Calculate:
(i) the number of moles of sulfuric acid in the titration
[1]
(ii) the concentration of the aqueous
potassium hydroxide
[2]
(iii) the mass of potassium hydroxide dissolved in 25 cm? of solution.
Answers
1. moles = concentration × volume
= 0.05 × (15/1000)
divide by 1000 as molar concentration is in dm (1000 cm meaning for every 1000 cm of liquid there is 0.05 moles)= 0.00075 moles
2. the concentration of aqueous potassium hydroxide
h2so4 + 2kcl = 2hcl + k2so4 (balanced equation)
this equation may be wrong as the products formed in the reaction between kcl and h2so4 varies by temperature/concentration hence the mole ratio could change.1 (h2so4) : 2 (kcl) mole ratio thus kcl has twice the number of moles.
0.00075 x 2 = 0.0015 moles
concentration = 0.0015 ÷ (25/1000)
= 0.06 mol/dm^-3
3. mass of potassium hydroxide dissolved in 25cm
there are 0.0015 moles in 25cm
mass= moles × molar mass
= 0.0015 × 74.5
= 0.11 grams
molar mass of kcl = 74.5 g/mol
Is mixing salt and pepper physical change or chemical change ?
Answers
Answer:Cutting, tearing, shattering, grinding, and mixing are further types of physical changes because they change the form but not the composition of a material. For example, mixing salt and pepper creates a new substance without changing the chemical makeup of either component.
Explanation:
Select the most ideal gas situation:
Hydrogen and steam.
Answers
When hydrogen and steam are both present in a gas at the same pressure and temperature, this is the ideal gas condition. This is so because according to the ideal gas law, an ideal gas's pressure, volume, and temperature are all precisely proportional to one another.
This indicates that when the two gases have the same temperature and pressure, the two gases will also have the same volume. As a result, the gases are in their ideal state, having the same volume and pressure but retaining their distinct chemical compositions.
This is perfect because it enables the two gases to interact with one another in a predictable way, allowing for the measurement and prediction of the gases' behaviour.
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