Homework Help is Here – Start Your Trial Now!
Science
Chemistry
In a 56.0-g aqueous solution of methanol, CH,O, the mole fraction of methanol is 0.280. What is the mass of each component? mass of CH,0: g CH,0 mass of water: gH,0

In a 56.0-g aqueous solution of methanol, CH,O, the mole fraction of methanol is 0.280. What is the mass of each component? mass of CH,0: g CH,0 mass of water: gH,0

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter13: Solutions And Their Behavior
Section: Chapter Questions
Problem 8PS
See similar textbooks
icon
Related questions
Question
In a 56.0-g aqueous solution of methanol, CH, O, the mole fraction of methanol is 0.280. What is the mass of each component? mass of CH0 : &CH,O mass of water: g H,0 - TOOLS x10 MacBook Air 000 F4 F7 F10
Transcribed Image Text:In a 56.0-g aqueous solution of methanol, CH, O, the mole fraction of methanol is 0.280. What is the mass of each component? mass of CH0 : &CH,O mass of water: g H,0 - TOOLS x10 MacBook Air 000 F4 F7 F10
Expert Solution
Step 1

Molar mass of methanol = 32.04 g / mol

Let mass of methanol present = a g

Mass of water = (56 - a) g

Molar mass of water = 18 g / mol

Moles of methanol present = a / 32.04

Moles of water = (56 - a) / 18

Total number of moles = (a / 32.04) + {(56 - a) / 18} = (1794.24 - 14.04a) / 576.72

Therefore, (a / 32.04) / [(1794.24 - 14.04a) / 576.72] = 0.280

or, 576.72 a = 16096.49 - 125.96 a

or, 702.68 a = 16096.49

or, a = 22.9 g

 

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Solutions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
Chemistry: Principles and Practice
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
Chemistry: Matter and Change
Chemistry: Matter and Change
Chemistry
ISBN:
9780078746376
Author:
Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:
Glencoe/McGraw-Hill School Pub Co
SEE MORE TEXTBOOKS