A 20.0 g sample of methyl alcohol (CH3OH, mol. wt. = 32.0 g/mol) was dissolved in 30.0 g of water. The mole fraction of CH3OH is: (a) 0.450 (b) 0.273 (c) 0.728 (d) 0.357 (e) 0.921
Added by Amanda P.
Step 1
Moles of CH3OH = mass / molar mass = 20.0 g / 32.0 g/mol = 0.625 mol Moles of H2O = mass / molar mass = 30.0 g / 18.0 g/mol = 1.667 mol Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 54 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
How many grams of methanol, CH3OH, must be added to water to prepare 150 mL of a solution that is 2.0 M ? 1 mole CH3OH = 32.0 g. Do not enter a unit with your answer. Show your work.
A chemist has 2.0 mol of methanol (CH3OH). The molar mass of methanol is 32.0 g/mol. What is the mass, in grams, of the sample? 16 30 32 64
Ma Ednelyn L.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD