Question
Asked Feb 6, 2020
71 views

The vapor pressure of chloroform is 173.11 mm Hg at 25°C.

How many grams of cholesterolC27H46O, a nonvolatile, nonelectrolyte (MW = 386.6 g/mol), must be added to 280.3 grams of chloroform to reduce the vapor pressure to 169.22 mm Hg ?

chloroform = CHCl3 = 119.40 g/mol.

 g cholesterol

check_circle

Expert Answer

Step 1

Relative lowering of vapor pressure is equal to the mole fraction of solute.

Chemistry homework question answer, step 1, image 1

Step 2

So mole fraction can be calculated as below,

Chemistry homework question answer, step 2, image 1

...

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

Science

Chemistry

Related Chemistry Q&A

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

Q: The element Fe has bcc packing with a body-centered cubic unit cell. The density of iron is 7.86 g/c...

A: Given element has BCC unit cell structure. Its density value is 7.86 g/cm3 and unit cell volume is 2...

question_answer

Q: How many moles of NaCl are prepared in the following solution? .1 Liter of .2 M NaCl are combined wi...

A: The number of moles can be calculated by taking the product of molarity of a solution and the volume...

question_answer

Q: 2. An acetaminophen suspension for infants contains 80. mg / 0.80 mL. The recommendeddose is 15 mg /...

A: Given, Acetaminophen suspension for infants = 80mg/0.80mL. Recommended dose = 15mg/kg body weight. W...

question_answer

Q: Water (2290 gg ) is heated until it just begins to boil. If the water absorbs 5.15×105 JJ of heat in...

A: Mass of water = 2290g.Heat absorbed by water = 5.15*105J.Boiling temperature of water = 1000C.Specif...

question_answer

Q: Q .The particles are in contact, but move relative to one another A)hydrogen B)cough syrup C)gold co...

A: Solid, liquid, and gas are identified as the three main physical states of substances. The different...

question_answer

Q: llege in I Assignments: Intro Chemist A 14 Measurements Measurements - Chemi: X New tab https://cnx....

A: Click to see the answer

question_answer

Q: How can chemistry be used to make a positive impact on the world

A: Chemistry is a discipline in science that involves with elements, compounds consisting of atoms, ion...

question_answer

Q: Consider the following aqueous solutions:  A. 0.10 m NH4NO3,  B. 0.10 m Fe(NO3)3 C. 0.10 m Ba(NO3)2 ...

A: The boiling point of the given solutions can be calculated as

question_answer

Q: Let’s say you started with a sample of pure H20 and added a chemical to adjust the [H+] to 10-2 M (m...

A: A chemical is added to pure water whose pH is 7 and adjust the concentration hydrogen ion in solutio...