Asked Feb 15, 2020


Which of the following substances has the highest vapor pressure?

Group of answer choices
3.0 M NaCl(aq)
0.10 M NaCl(aq)
0.25 M NaCl(aq)

At room temperature, 5.25 g of Ce2(SO4)3 can dissolve in 50.0 g of water.  What is the mole fraction of Ce2(SO4)3 in this solution?

Group of answer choices

Expert Answer

Step 1


The pressure exerted by vapor is called vapor pressure.

Chemistry homework question answer, step 1, image 1

Step 2

Pure solvent has more vapor pressure than its corresponding solution.

As some of the space on the surface of the solvent is occupied by solue molecules, the vapor pressure of pure solvent decreases.

So, if the amount of solute increases in the solution, the vapor pressure of the solution decreases more.


Step 3

In the given data,

3.0M NaCl aqueous solution (solution)

0.10 M NaCl(aq)(solution)
water (pure solvent)
0.25 M NaCl(aq)  (solution)
Among them water is the p...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: please answer part f using the provided information in the images

A: Click to see the answer


Q: When one mole of calcium carbonate reacts with ammonia, solid calcium cyanamide, CaCN2, and liquid w...

A: Given that calcium carbonate reacts with ammonia to form solid calcium cyanamide and also given that...


Q: Given the thermochemical equations X, + 3 Y, → 2 XY, AH1 = -390 kJ X, +2 Z, → 2 XZ, AH2 = -160 kJ AH...

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.


Q: The following reaction resulted in the product shown below, but not the other product shown. Using t...

A: Organic compounds are mainly covalent compounds in which C-C, C-H and C-X bonds are present. Here ‘X...


Q: Convert 0.01300.0130 mol of aluminum to grams.

A: Click to see the answer


Q: At 307 K, this reaction has a Kc value of 0.0150. 2X(g)+3Y(g)<==>Z(g) Calculate Kp at 307 K. N...

A: The equation connecting Kc and Kp is given below:


Q: What is the empirical formula of a substance that contains 0.217 molmol of carbon, 0.433 molmol of h...

A: Given: Moles of Carbon = 0.217 mol. Moles of hydrogen = 0.433 mol. Moles of Oxygen = 0.216 mol.


Q: A stalk of celery has a caloric content (fuel value) of 9.0 kcal.If 1.0 kcal is provided by fat and ...

A: Given that the caloric content of celery is 9.0 kcal. Fat provides 1.0 kcal calories. The fuel value...


Q: How do we prepare 2.0 L of a 0.15 M aqueous solution of sodium hydroxide, NaOH?

A: Given, Volume of solution = 2.0L. Molarity of solution = 0.15M. The moles of sodium hydroxide presen...