A solution with a ph of 5 has how many more hydrogen ions in it than a solution with a ph of 7?

The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.

In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.

The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.

During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.

The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.

The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.

In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.

For more such question on temperature visit:

https://brainly.com/question/4735135

#SPJ8

This element is in group 1.

According to the octet rule, this element would be expected to form an ion with a charge of +1.

If X is in period 5, the ion formed has the same electron configuration as the noble gas Krypton

The symbol for the ion is Rb⁺

Electronic configuration refers to the arrangement of electrons in the orbitals of an atom or molecule, indicating the energy level of the electrons, the number of electrons in each energy level, and the number of electrons in each orbital.

Considering the given element:

It has one valence electron, hence it is in group 1. Group 1 elements form ions with a charge of +1.

Losing one electron will give the ion the same electron configuration as Kyrton since it is the noble gas in Period 4.

The element is rubidium and the ion is Rb⁺.

Learn more about electronic configuration at: https://brainly.com/question/26084288

#SPJ1

The given reaction can be balanced and it is clear that, 2 moles of aluminum chloride gives 3 moles of chlorine gas. Then, 35.4 g or 3.7 moles will give 5.65 moles of Cl₂.

A balanced chemical equation represents the perfect stoichiometry for all the reactants and products.  The balanced chemical equation of the given reaction can be written as follows:

\(\rm 2AlCl_{3} + 3F_{2} \rightarrow 2AlF_{3} + 3Cl_{2}\)

Molar mass of AlCl₃ = 133.5 g/mol.

no.of moles in 35.4 g = 35.4 /133.5 = 3.77 moles.

2 moles gives 3 moles of chlorine gas. Then, number of moles of oxygen gas produced by 3.77 moles is:

(3.77 ×3 )/2 = 5.65 moles.

Molar mass of CCl₄ = 154 g/mol.

molecular mass of Cl₂ = 71 g/mol

mass of 4 moles = 284 g.

Mass of CCl₄ produced from 52.5 g of Cl₂

= (52.5 × 154)/284 = 28.6 g

The third reaction can be balanced as follows:

\(\rm 2 KClO_{3} \rightarrow 2 KCl + 3O_{2}\)

Molar mass of potassium chlorate = 122.5 g/mol

no.of moles in 22.8 g = 22.8/122.5 = 0.186 moles.

As per the reaction, 2 moles of potassium chlorate gives 3 moles of oxygen gas, then 0.186 moles gives:

(0.186 × 3)/2 = 0.27 moles.

Find more on balanced chemical equations:

https://brainly.com/question/14572251

#SPJ1

The ions that are formed by the ions is;

The term ion refers to a specie that is obtained by the loss or gain of electrons. A positive ion is formed by the loss of electrons while a negative ion is formed by gain of electrons.

A positive ions has more protons than electrons while a negative ion has more electrons than protons. There is only one major ion that could be formed by main group elements.

The ions that are formed by the ions is;

Learn more about ions:https://brainly.com/question/14982375

#SPJ1

Explanation:

Preciptation and air pressure

Answer:

It is Temperature and humidity. C

Explanation:

I took the test and it said it was C

Answer:

\(m_{Al}=3.38gAl\)

\(Y=83.1\%\)

Explanation:

Hello.

In this case, for the given balanced reaction:

\(Fe_2O_3(s) + 2Al(s)\rightarrow 2Fe(s) + Al_2O_3(s)\)

For 10.0 g of iron (III) oxide (molar mass = 160 g/mol), based on the 1:2 mole ratio with Al (atomic mass = 27 g/mol), the required mass is then:

\(m_{Al}=10.0gFe_2O_3*\frac{1molFe_2O_3}{160gFe_2O_3} *\frac{2molAl}{1molFe_2O_3} *\frac{27gAl}{1molAl} \\\\m_{Al}=3.38gAl\)

Moreover, as 5.3 g of aluminum oxide are actually yielded, from the 10.0 g of iron (III) oxide, we can compute the theoretical mass of aluminum oxide (molar mass = 102 g/mol) via their 1:1 mole ratio:

\(m_{Al_2O_3}=10.0gFe_2O_3*\frac{1molFe_2O_3}{160gFe_2O_3} *\frac{1molAl_2O_3}{1molFe_2O_3} *\frac{102gAl_2O_3}{1molAl_2O_3} \\\\m_{Al_2O_3}=6.38gAl_2O_3\)

Thus, the percent yield (actual/theoretical*100%) turns out:

\(Y=\frac{5.3 g}{6.38 g}* 100\%\\\\Y=83.1\%\)

Best regards.

Answer:

Insulators

Explanation:

They could work as Insulators

Hope it Helps

The balanced molecular equation for the reaction between sodium hydroxide (NaOH) and aluminum chloride (\(AlCl_3\)) in aqueous solution can be written as follows: 2NaOH(aq) + 3\(AlCl_3\)(aq) → 3NaCl(aq) + \(Al(OH)_3\)(s)

In this reaction, sodium hydroxide (NaOH) reacts with aluminum chloride (\(AlCl_3\)) to form sodium chloride (NaCl) and aluminum hydroxide (\(Al(OH)_3\)). The coefficients in the balanced equation indicate the stoichiometric ratio between the reactants and products.

The physical states of the substances are indicated by the symbols (aq) for aqueous solutions and (s) for the solid precipitate.

The reaction is a double-displacement reaction, also known as a precipitation reaction. Double-displacement reactions involve the exchange of ions between two compounds, resulting in the formation of a precipitate.

In this case, sodium hydroxide and aluminum chloride react to form sodium chloride and aluminum hydroxide, with aluminum hydroxide being the white solid precipitate.

It's worth noting that the actual reaction might involve hydrated forms of the compounds, such as NaOH·x\(H_2O\) and \(AlCl_3\)·y\(H_2O\). However, for simplicity, these hydrated forms are not included in the balanced equation.

Overall, the balanced equation represents the chemical reaction between sodium hydroxide and aluminum chloride, showing the reactants, products, and their stoichiometric ratios.

For more such question on balanced molecular equation visit:

https://brainly.com/question/11904811

#SPJ8

Answer:

A Violet object

Explanation:

An Violet object attracts the heat after white objects, followed by orange, yellow, green, blue, indigo and violet, which attracts the most heat of any visible color other than black.

Answer:

telescopes and microscopes both use lenses

Answer:

The process of rock transformation is known as metamorphism, which occurs when rocks are subjected to high pressures, temperatures, and/or chemical processes. These conditions cause the minerals in the rock to recrystallize, forming new minerals and altering the rock's texture, structure, and chemical composition.

During metamorphism, rocks can change from one type to another, depending on the specific conditions they are subjected to. For example, a sedimentary rock such as sandstone can be transformed into a metamorphic rock such as quartzite through intense heat and pressure. Similarly, an igneous rock such as granite can be transformed into a metamorphic rock such as gneiss.

Plate motion plays a significant role in the metamorphism process, as it can cause rocks to be subjected to high pressures and temperatures. When two tectonic plates collide, the rock at the boundary between the plates can be forced to change as a result of the pressure and heat generated by the collision. This is known as regional metamorphism.

In addition to plate motion, other geologic processes such as erosion, weathering, and the intrusion of magma can also cause metamorphism. So, in general, rocks can transform into different types of rocks due to plate motion, as well as other geologic processes.

It's worth noting that not all rocks can transform into any type of rock, since some rocks have a more specific metamorphic path to transform from one rock to another, depending on the rock's composition, mineralogy, and initial structure.

Uday Tahlan

Answer:

If she/he didn't say that I would of probably said the same thing. lol

Explanation:

It is just the truth.

Answer: which*

Explanation:

Answer:

The volume of the tank is approximately 130.75 m³.

To solve this problem, we need to use the concept of air and water vapor mixture. The given data includes the mass of dry air and water vapor, temperature, and total pressure. We can calculate the specific humidity, relative humidity, and volume of the tank using the following steps:

(a) Specific humidity:

The specific humidity (ω) is defined as the ratio of the mass of water vapor (m_w) to the total mass of the air-water vapor mixture (m_t):

ω = m_w / m_t

Given that the mass of water vapor is 0.17 kg and the total mass of the mixture is 15 kg + 0.17 kg = 15.17 kg, we can calculate the specific humidity:

ω = 0.17 kg / 15.17 kg ≈ 0.0112

So, the specific humidity is approximately 0.0112.

(b) Relative humidity:

Relative humidity (RH) is the ratio of the partial pressure of water vapor (P_w) to the saturation vapor pressure of water (P_ws) at the given temperature, multiplied by 100:

RH = (P_w / P_ws) * 100

To find the relative humidity, we need to determine the saturation vapor pressure at 30°C. Using a vapor pressure table or equation, we can find that the saturation vapor pressure at 30°C is approximately 4.246 kPa.

Given that the total pressure is 100 kPa, the partial pressure of water vapor is 0.17 kg / 15.17 kg * 100 kPa = 1.119 kPa.

Now we can calculate the relative humidity:

RH = (1.119 kPa / 4.246 kPa) * 100 ≈ 26.34%

So, the relative humidity is approximately 26.34%.

(c) Volume of the tank:

To find the volume of the tank, we can use the ideal gas law equation:

PV = nRT

Where P is the total pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

First, we need to calculate the number of moles of dry air and water vapor in the tank. The number of moles (n) can be obtained using the equation:

n = m / M

Where m is the mass and M is the molar mass.

The molar mass of dry air is approximately 28.97 g/mol, and the molar mass of water vapor is approximately 18.015 g/mol.

For dry air:

n_air = 15 kg / 0.02897 kg/mol ≈ 517.82 mol

For water vapor:

n_water = 0.17 kg / 0.018015 kg/mol ≈ 9.43 mol

Now we can calculate the volume using the ideal gas law:

V = (n_air + n_water) * R * T / P

Given that R is the gas constant (8.314 J/(mol·K)), T is the temperature in Kelvin (30°C + 273.15 = 303.15 K), and P is the total pressure (100 kPa), we can calculate the volume:

V = (517.82 mol + 9.43 Mol) * 8.314 J/(mol·K) * 303.15 K / (100,000 Pa) ≈ 130.75 m³

for more questions on volume

https://brainly.com/question/29796637

#SPJ8

Answer:

b. Double displacement.

Explanation:

It is a double displacement reaction, because in this case, hydrogen atom in HBr is replaced by a sodium atom (from NaOH), and the sodium atom (in NaOH) is replaced by another H atom from HBr molecule, to form H2O.

The empirical formula of polyethylene can be determined by converting the given percentages of carbon (C) and hydrogen (H) into grams. To find the grams of each element, we assume a 100.0 g sample of polyethylene.

For carbon:

Mass of carbon = 86.0% × 100.0 g = 86.0 g

For hydrogen:

Mass of hydrogen = 14.0% × 100.0 g = 14.0 g

Therefore, in a 100.0 g sample of polyethylene, there are 86.0 grams of carbon and 14.0 grams of hydrogen.

The empirical formula of a compound represents the simplest whole-number ratio of atoms present in the compound. To determine the empirical formula, we need to find the ratio of carbon to hydrogen in terms of moles.

First, we convert the masses of carbon and hydrogen into moles using their respective molar masses. The molar mass of carbon is approximately 12.01 g/mol, and the molar mass of hydrogen is approximately 1.008 g/mol.

Number of moles of carbon = 86.0 g / 12.01 g/mol ≈ 7.162 mol

Number of moles of hydrogen = 14.0 g / 1.008 g/mol ≈ 13.89 mol

Next, we divide the number of moles of each element by the smallest number of moles to get a simplified ratio.

Carbon: Hydrogen ≈ 7.162 mol : 13.89 mol ≈ 1 : 1.939

Since we want to express the ratio in whole numbers, we multiply both sides by 2 to get a whole number ratio.

Carbon: Hydrogen ≈ 2 : 3.878

Rounding to the nearest whole number, we find that the empirical formula of polyethylene is CH₂.

for such more questions on hydrogen

https://brainly.com/question/24433860

#SPJ8

The solubility of carbon dioxide in water at the given pressure would be 8.45 g CO2 in 100 mL of water.  

According to Henry's law:

C = kH x P

where:

To solve this problem, we need to use the Henry's law constant for carbon dioxide in water at 20 \(^oC\), which is 0.0349 mol/L/atm. Let's convert the given solubility from mass/volume units to molar concentration units as follows:

Now we can use Henry's law to calculate the solubility of carbon dioxide in water at 5.50 atm:

Concentration from mol/L to mass/volume units:

0.192 mol/L x 44.01 g/mol = 8.45 g CO2 / 100 mL

Therefore, the solubility of carbon dioxide in water at 5.50 atm pressure is approximately 8.45 g CO2 in 100 mL of water at 20 \(^oC\).

More on solubility can be found here: https://brainly.com/question/28170449

#SPJ1

The amount of water needed to be added to a 8.6317 M NaCl solution to obtain a 1.0421 M solution starting with 4.7869 liters of solution would be 34.8629 L.

The problem here has to do with dilution. The dilution principle states that the number of moles of solute in a solution is constant before and after dilution.

In other words, the dilution principle can be mathematically expressed as:

\(m_1v_1\) = \(m_2v_2\).

Where \(m_1\) and \(m_2\) are molarities before and after dilution; \(v_1\) and \(v_2\) are volumes before and after dilution.

In this case:  \(m_1\) = 8.6317 M,  \(m_2\)= 1.0421 M,  \(v_1\)= 4.7869 L. We are to determine v2.

\(v_2\) = \(m_1v_1\)/ \(m_2\)

    = 8.6317x4.7869/1.0421

    = 39.6498 L

If the final volume of the solution is 39.6498 L and the starting volume is 4.7869, then the amount of water needed can be calculated as:

39.6498 - 4.7869 = 34.8629 L

Thus, the amount of water that will be added to the original solution in order to arrive at the diluted solution is 34.8629 L.

More on dilutions can be found here: https://brainly.com/question/21323871

#SPJ1

Answer:

\(SnS_{2}\)

Explanation:

The formula for tin(IV) sulfide is SnS\(_{2}\)

aC2H6 + bCO2 + cH2O → dC2H5OH The balanced equation for the reaction is given as; 6C2H6 + 2CO2 + 3H2O → 7C2H5OH, Check! Oxygen  Product = 7 Carbon Reactant = 6 * 2  +  2  = 14 Product = 7 * 2 =14 Hydrogen d = 7.

The manner that chemical equations are written ensures that almost all of the molecules are visible.Each oxygen molecule contains two oxygen atoms, which is why the symbol for it is [2].Recall that only two oxygen atoms make up each diatomic oxygen molecule that we breathe.

Oxidation processes, addition reactions, substitution reactions, and combustion reactions are the four basic types of reactions in which carbon is primarily involved.When carbon burns with oxygen present, heat and light are produced.

To know more about Oxygen visit:

https://brainly.com/question/2272415

#SPJ4

Answer:

hmmm good luck

Explanation:

Answer: i think it’s maintaining homeostasis

Explanation: idrk it’s my best guess, i’m taking the test rn and that’s what i’m gonna put. i have an A in this class lol so ‍♀️

Answer:

maintaining homeostasis

Explanation:

I got it on my test and I got it right.

Answer: atoms

Explanation: cell membrane is in a cell

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

For more such questions on equilibrium, click on:

https://brainly.com/question/517289

#SPJ8

This extremely high temperature indicates that under normal conditions, you do not need to worry about your car tire bursting from overheating as it is unlikely to reach such extreme temperatures.

To determine the temperature at which the tire will burst, we can use the ideal gas law equation:

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

Rearranging the equation to solve for temperature, we have:

T = PV / (nR)

Given that the pressure threshold for bursting is 1.4 x 10^3 kPa, the volume is 30 L, and the number of moles of air is 2.5 mol, we can substitute these values along with the ideal gas constant R = 8.314 J/(mol K) into the equation.

T = (1.4 x 10^3 kPa) * (30 L) / (2.5 mol * 8.314 J/(mol K))

Converting kPa to Pa and L to m^3, and simplifying the equation, we find:

T ≈ 20,993 K

This extremely high temperature indicates that under normal conditions, you do not need to worry about your car tire bursting from overheating as it is unlikely to reach such extreme temperatures.

For more question on temperatures

https://brainly.com/question/4735135

#SPJ8

Explanation:

We have to find the phase of water at 0.25 atm and 0°C. If we look at the phase diagram of water and throw the lines we will find that the phase of water at those conditions is solid.

Answer: d. Solid

Answer: 4 miles

Explanation:

Riding the bike 12 mph (miles per hour) for one hour, we would ride the bike 12 miles. Since 20 minutes is 1/3 of a hour, divide 12 by 3 to find out how far the biker traveled in 1/3 of the time: 4 miles Hope this helps

Hello!

\(\large\boxed{\frac{5}{3}\text{ hours} \text{ or }100 \text{ min}}\)

Use the equation d = s · t where:

s = speed

t = time

d = distance

Plug in the given distance and speed:

20 = 12 ·t

Divide both side by 12 to isolate for t:

20/12 = t

Simplify:

5 / 3 = t

Therefore, it took 5/3 hours to bike. We can convert this to minutes if necessary:

5/3 · 60 min (in one hour) = (60 · 5) / 3 = 100 min.

Answer:

D

Explanation:

It is a solid everything that is a solid is heavier