Calculate the volume of the following gas sample at STP. 4.1 mol N2

The freezing point of the 0.520m aqueous solution of NaCl is -0.96°C.

Freezing point refers to the temperature at which a liquid freezes, and the solid and liquid phases are in equilibrium.

Using the equation below, the freezing point can be calculated;

∆T = Kf. m

Where;

According to this question, the molality of the NaCl solution is given as 0.520m.

∆T = 1.86°C/m × 0.520m

∆T = 0.96°C

T (solution) = T (water) – ∆T

T (solution) = 0°C - 0.96°C

T (solution) = -0.96°C

Therefore, -0.96°C is the freezing point of the solution.

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Answer:

-1.934

Explanation:

0 - {(0.520) x (1.86) x (2)}

Answer:

flood

Explanation:

i put typhoon and i got it wrong, volcanoe is not a natural disaster and even ifit was they are nowhere near florida, and an avalanche cant happen in florida because there is no snow, and learn from my mistake and put FLOOD, not typhoon.

Answer:

It is always twice the value of the actual yield.

Explanation:

a) The number of moles of the silver sulfate is  0.0093 moles.

b) The concentration of the silver ion is  1.86 M

c) There are still some solvent molecules left.

We know that the concentration has to do with the amount of the substance that we have in solution. In this case we can see that the substance that we are measuring is the concentration of the silver sulfate.

Number of moles of the silver sulfate = 3.79 - 0.88 g/312 g/mol

= 0.0093 moles

If 2 moles of silver nitrate produces 1 mole of silver sulfate

x moles of silver nitrate produces  0.0093 moles of silver sulfate

x = 2 *  0.0093 /1

= 0.0186 moles

Molarity of the silver ion = 0.0186 moles/10 * 10^-3 L

= 1.86 M

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The statement "All organic compounds contain the element carbon, but not all compounds containing the element 'carbon' are organic" can be justified based on the definition and characteristics of organic compounds.

Organic compounds are compounds primarily composed of carbon and hydrogen atoms, often with other elements like oxygen, nitrogen, sulfur, and phosphorus. These compounds are typically associated with living organisms and are known for their unique properties and behavior, including the ability to form complex structures, exhibit covalent bonding, and undergo organic reactions.

On the other hand, there are compounds that contain carbon but are not classified as organic. One notable example is carbon dioxide (\(CO_{2}\)), which is a simple inorganic compound composed of carbon and oxygen. Carbon dioxide does not possess the characteristic properties of organic compounds, such as the ability to form long chains or undergo organic reactions.

Additionally, there are inorganic compounds like carbonates (such as calcium carbonate) and carbides (such as calcium carbide) that contain carbon but are not considered organic. These compounds have distinct chemical and physical properties different from those of organic compounds.

In summary, while all organic compounds contain carbon, not all compounds containing carbon are organic. The classification of a compound as organic or inorganic depends on its overall molecular structure, bonding, and characteristic properties.

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The total kilojoules in two tablespoons is  836.8 kJ.

To determine the total kilojoules in two tablespoons of a substance, we need to know the specific substance and its energy content per tablespoon. Different substances have different energy values, so without this information, it is not possible to provide an accurate calculation.

The energy content of food or substances is typically measured in kilocalories (kcal) or kilojoules (kJ). 1 kilocalorie is equal to 4.184 kilojoules. The energy content of a substance is often listed on food labels or in nutritional databases.

For example, if we have the energy content of a substance as 100 kilocalories (kcal) per tablespoon, we can convert it to kilojoules by multiplying it by 4.184:

100 kcal * 4.184 kJ/kcal = 418.4 kJ

So, if we have two tablespoons of this substance, the total energy would be:

418.4 kJ/tablespoon * 2 tablespoons = 836.8 kJ

It's important to note that the energy content of a substance can vary depending on its composition, density, and other factors. Therefore, it is always recommended to refer to reliable sources such as food labels, nutritional databases, or consult a qualified professional to obtain accurate information regarding the energy content of specific substances.

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The balanced equation of the reaction shows that the mole of atoms on both sides of the reaction are equal.

Balanced chemical equations are equations in wgich the moles of each species on both sides of the reaction are equal.

To balance chemical equations, numerical coefficients are placed in front of the species in the reaction.

The balanced equations of the reaction are as follows:

\(3Pd + 4H_3PO_4 \rightarrow Pd_3(PO_4)_4 + 6H_2 \\ \)

\(C_{11}H_{24} + 17O_2 \rightarrow 11CO_2 + 12H_2O \\ \)

\(2Al(HCO_3)_3 + 3H_2SO_4\rightarrow Al_2(SO_4)_3 +6CO_2 +6H_2O \\ \)

Therefore, the balanced equation of the reaction shows that the mole of atoms on both sides of the reaction are equal.

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Answer:

group 17 the halogen.as it has 7 electron in its outermost ring

Answer:

One of the organelles in eukaryotic cells that carry out digestion and waste removal.

Answer:

It's X

Explanation:

Answer:

D

Explanation:

Your supervisor is in charge of you so therefore you must always tell your supervisor first.

Answer:

C.

Explanation:

Because you might get hurt, could be dangerous.

Answer:طيزي

Explanation:

Answer:Ca(No3)2

Explanation:

If C3H8O is dissolved in water, it would be expected to be a strong electrolyte.

A strong electrolyte is a solute or solution (already an electrolyte) that can completely dissociates in solution.

C3H8O is one of those compounds expected to be a strong electrolyte.

Thus, if C3H8O is dissolved in water, it would be expected to be a strong electrolyte.

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Answer:

to end segregation

Explanation:

National Association for the Advancement of Colored People (NAACP), interracial American organization created to work for the abolition of segregation and discrimination in housing, education, employment, voting, and transportation; to oppose racism; and to ensure African Americans their constitutional rights.

To end segregation was a major goal of the National Association for the Advancement of Colored People when it was formed in 1909. Therefore, the correct option is option B.

A group of individuals led by W. E. B. Du Bois, Mary's White Ovington, Moorfield Storey, and Ida B. Wells founded the National Association over the Advancement of Coloured People (NAACP) in 1909 as an interracial effort to advance fairness for African Americans. Roy Wilkins and Thurgood Marshall were among the group's leaders.

"To ensure the equal treatment in politics, schools, society, and the economy of the liberties of all persons as to eliminate ethnicity-based discrimination" is its stated objective for the twenty-first century. Political lobbying, public relations campaigns, and legal team-developed lawsuit strategies are just a few of the national NAACP initiatives. To end segregation was a major goal of the National Association for the Advancement of Colored People when it was formed in 1909.

Therefore, the correct option is option B.

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Explanation:

Melting is the process of matter changing from a solid to a liquid.

Condensation is the process of matter changing from gas to liquid.

Answer: Melting, condensation.

In this question, we have to find the missing value in a dilution situation, the formula of dilution is:

M1*V1 = M2*V2

For letter A, we have:

M1 = 3.0 M of NaCl

V1 = ?

M2 = 0.5 M of NaCl

V2 = 600 mL

Now we add these values into the formula:

3 * V1 = 0.5 * 600

V1 = 100 mL, this if for LETTER A

For letter B, we have:

M1 = 2.5 M of MgSO4

V1 = ?

M2 = 0.2 M

V2 = 1.0 L or 1000 mL

Now we add these values into the formula:

2.5 * V1 = 0.2 * 1000

V1 = 80 mL, this is for LETTER B

For letter C, we have:

M1 = 4.8 M KNO3

V1 = ?

M2 = 0.2 M

V2 = 80 mL

Now we add these values into the formula:

4.8 * V1 = 0.2 * 80

V1 = 3.33 mL, this is for LETTER C

Answer:

1330 mm Hg

1 atm = 760 mm Hg

there will be a multiplication or division based on the direction of the change

At pOH value  of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

In this question we will apply the formula

      pH +pOH = 14 . . . . . . . . . . . . .(1)

where pH = concentration of [\(H^{+}\) ] ion

pOH = concentration of [\(OH^{-}\) ] ion

As per the question

pOH =6.0

Putting the value of pOH in equation (1) we get the value of pH

              pH + 6.0 =14

             pH = 14 -6.0

             pH  = 8.0

 The value of pH if the pOH value is 6.0 is 8.0

To find the concentration of \(H^{+}\) ion we will use the following formula

This is calculated by the formula

                                 [\(H^{+}\)} = \(10^{-pH}\)

where we will write the values of pH

Hence the concentration of [\(H^{+}\)} ion is \(10^{-8}\)

Therefore at  pOH of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

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The complete question is -

What is the pH value and concentration of [\(H^{+}\) ] ion of the following if the pOH value of the solution is 6.0 ?

Answer:

A

Explanation:

Answer:

mg

Explanation:

Answer:

because these substances solidify when cooled and would clog the pipes of the air liquefaction plant.

Answer:

  Field experiments can often have the potential to give scientists opportunities that are not possible in a lab setting.

Explanation:

  Having people "act natural" in a lab setting is impossible to truly achieve, as we all know what happens to our mental state and behavior when we are being actively observed. This is also especially helpful when conducting wildlife research, as there are a myriad of different things influencing animal and plant behavior that would be nigh impossible to recreate perfectly in a controlled lab setting.

  Field research can have its disadvantages as well, as it is very hard to only have one thing change (make an independent variable) in a wild environment with ever-changing weather, social effects, etc. Also, you, as the researcher, as causing an impact on the very location that you are observing, which can alter your results in unpredictable ways.

  The thing to remember is that each type of study has its advantages and disadvantages; if they didn't, then we'd all do the same type of research! You have to weigh your research options and figure out which one works best for your situation :)

Answer:

will be 9.7 Liters

Explanation:

Answer:

Explanation:

IUPAC nomenclature is based on naming a molecule's longest chain of carbons connected by single bonds, whether in a continuous chain or in a ring. All deviations, either multiple bonds or atoms other than carbon and hydrogen, are indicated by prefixes or suffixes according to a specific set of priorities

Answer:

522

Explanation:

9 time 8 is 72, 7 carryover on 5 and 9 times 5 is 45 plus 7 carry over which is equal to 52. Therefore answer becomes 522.

Answer - 0.657 liters

Answer:

0.657 liters

Explanation:

i just know

1.2x10*M solution of HI O will cause the greatest pH change in the blood. In chemistry, pH, historically denoting "potential of hydrogen", is a scale used to specify the acidity or basicity of an aqueous solution.

What is pH?

In chemistry, pH, which historically stands for "hydrogen potential," is a measure used to indicate the acidity or basicity of an aqueous solution. Acidic solutions measured lower pH values ​​than either basic or alkaline solutions.

Therefore, 1.2x10*M solution of HI O will cause the greatest pH change in the blood. In chemistry, pH, historically denoting "potential of hydrogen", is a scale used to specify the acidity or basicity of an aqueous solution.

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molar mass of empirical formula = (20 x 12.01 g/mol) + (24 x 1.01 g/mol) + (1 x 14.01 g/mol) = 324.44 g/mol ratio = 324.44 g/mol / 324 g/mol = 1.001. The molecular formula of quinine is C20H24N.

The active component of cinchona extracts, which have been used for this purpose since before 1633, is utilized as an antimalarial medication. Quinine has been utilized in conventional cold remedies for its use as a mild antipyretic and analgesic.

Plasmodium falciparum malaria is treated with quinine. Malaria is brought on by the parasite Plasmodium falciparum, which enters the body through the red blood cells. Quinine functions by either eliminating the parasite or halting its growth.

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