Glycerol (C3H8O3), also called glycerine, is widely used in the food and pharmaceutical industries. Glycerol is polar and dissolves readily in water and polar organic solvents like ethanol. Calculate the mole fraction of the solvent in a solution that contains 2.51 g glycerol dissolved in 21.10 mL ethanol (CH3CH2OH; density

1 answer
Question:

Glycerol (C3H8O3), also called glycerine, is widely used in the food and pharmaceutical industries. Glycerol is polar and dissolves readily in water and polar organic solvents like ethanol. Calculate the mole fraction of the solvent in a solution that contains 2.51 g glycerol dissolved in 21.10 mL ethanol (CH3CH2OH; density

Answers

Answer:  The mole fraction of the solvent in a solution that contains 2.51 g glycerol dissolved in 21.10 mL ethanol is 0.93Explanation:Given : Volume of ethanol (solvent) = 21.10 ml density of ethanol (solvent)= 0.789 g/ml Mass of ethanol (solvent) = [tex]0.789g/ml\times 21.10ml=16.6g[/tex]Mass of glycerol (solute) = 2.51 g Mole fraction of a component is the ratio of moles of that component to the total moles present.moles of ethanol =[tex]\frac{\text {given mass}}{\text {molar mass}}=\frac{16.6g}{46g/mol}=0.36mol[/tex]moles of glycerol =[tex]\frac{\text {given mass}}{\text {molar mass}}=\frac{2.51g}{92g/mol}=0.027mol[/tex]mole fraction of ethanol (solvent) = [tex]\frac{\text {moles of ethanol}}{\text {moles of ethanol + moles of glycerol}}=\frac{0.36}{0.36+0.027}=0.93[/tex]The mole fraction of the solvent in a solution that contains 2.51 g glycerol dissolved in 21.10 mL ethanol is 0.93

Similar Solved Questions

1 answer

What specific advice does dweck provide on how parents and educators can influence the mindsets of children? explain how this advice could help persuade readers to accept her claim?

What specific advice does dweck provide on how parents and educators can influence the mindsets of children? explain how this advice could help persuade readers to accept her claim?...
1 answer

Name three of the main weaknesses of the central government under the Articles of Confederation.

Name three of the main weaknesses of the central government under the Articles of Confederation....
1 answer

2.3.2 in the malpighian body name four of the substances which are represented by arrows​

2.3.2 in the malpighian body name four of the substances which are represented by arrows​...
1 answer

Describe geographical isolation and competition

Describe geographical isolation and competition...
2 answers

Is dominated has only one meaning?

Is dominated has only one meaning?...
1 answer

How did the Treaty affect Germany and the Soviet Union?

How did the Treaty affect Germany and the Soviet Union?...
1 answer

How much water should be added to 30 l of a 40 acid solution to reduce it to a 30 solution?

How much water should be added to 30 l of a 40 acid solution to reduce it to a 30 solution?...
2 answers

A spaceship travels at 14,200 m/s and comes to rest above New York. It took 1.23 seconds to stop. What is its acceleration?​

A spaceship travels at 14,200 m/s and comes to rest above New York. It took 1.23 seconds to stop. What is its acceleration?​...
1 answer

Which of the following political issues most seriously divided Northern and Southern politicians during the pre- Civil War period?

Which of the following political issues most seriously divided Northern and Southern politicians during the pre- Civil War period?...
1 answer

Which of the following shows the levels of organization in a multi-cellular organism from the smallest level to the largest? Question 8 options: A) cell, tissue, organ, organ system, organism B) organism, organ system, organ, tissue, cell C) tissue, cell, organ, organ system, organism

Which of the following shows the levels of organization in a multi-cellular organism from the smallest level to the largest? Question 8 options: A) cell, tissue, organ, organ system, organism B) organism, organ system, organ, tissue, cell C) tissue, cell, organ, organ system, organism...
1 answer

Which sentence is an example of an objective summary? O Elizabethans had some interesting ideas about disease. O Malaria was common in marshy areas where mosquitoes bred. O Studying humors seems like a ridiculous medical practice. O Obviously, English citizens should have left the swampy regions.

Which sentence is an example of an objective summary? O Elizabethans had some interesting ideas about disease. O Malaria was common in marshy areas where mosquitoes bred. O Studying humors seems like a ridiculous medical practice. O Obviously, English citizens should have left the swampy regions....
2 answers

!?!?!?!??!?!?!?!?!?!?!?!?!?!?!?!?!

!?!?!?!??!?!?!?!?!?!?!?!?!?!?!?!?!...
1 answer

Write two equivalent ratios of 7/10. 12/11. 3/2. 11/4. and 5/12.

Write two equivalent ratios of 7/10. 12/11. 3/2. 11/4. and 5/12....
1 answer

The hebrews were unlike other cultures at the time because they

the hebrews were unlike other cultures at the time because they...
1 answer

7 less than 5 times a number

7 less than 5 times a number...
1 answer

What events lead up to the victory at Yorktown?

What events lead up to the victory at Yorktown?...
2 answers

What is this math property called? Need help.

What is this math property called? Need help....
1 answer

Your friend tells you that there is no starch in the homemade cookies she gives you. You like her, but you are not too sure that she really knows what ingredients might or might not contain starch. When you get the cookies home, what test could you do to quickly test to see if there was starch in the cookies?

Your friend tells you that there is no starch in the homemade cookies she gives you. You like her, but you are not too sure that she really knows what ingredients might or might not contain starch. When you get the cookies home, what test could you do to quickly test to see if there was starch in th...
2 answers

The word bourgeois could substitute for the italicized word(s) in which of these sentences? O A. Children who are native to the South have a difficult time adjusting to the North B. Going to college used to be difficult for middle-class children. C. It's not necessary to have a flawless resume to get a job, but it helps. D. It is possible to go from being destitute to being rich, but it's not easy.

The word bourgeois could substitute for the italicized word(s) in which of these sentences? O A. Children who are native to the South have a difficult time adjusting to the North B. Going to college used to be difficult for middle-class children. C. It's not necessary to have a flawless resume to ge...
2 answers

In the diary of a young girl who is pim

In the diary of a young girl who is pim...

-- 0.010618--