hmwk 3 solutions - mao (tm23477) Homework 3: Ideal gases...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: mao (tm23477) Homework 3: Ideal gases Shear (52375) 1 This print-out should have 12 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. You may need to look up conversion factors and values of R in the back of your textbook. 001 (part 1 of 3) 10.0 points Methanol (CH 3 OH) is the simplest of the al- cohols. It is synthesized by the reaction of hydrogen and carbon monoxide: CO(g) + 2 H 2 (g)- CH 3 OH If 465 mol of CO and 797 mol of H 2 are present, which is the limiting reactant? 1. CO 2. H 2 correct Explanation: n CO = 465 mol n H 2 = 797 mol limiting reactant = ? mole ratio : 2 mol H 2 1 mol CO . n H 2 required = 465 molCO 2 mol H 2 1 mol CO = 930 mol H 2 Because there is only 797 mol H 2 available, the limiting reactant is H 2 . 002 (part 2 of 3) 10.0 points How much of the excess reactant remains un- changed? Correct answer: 66 . 5 mol. Explanation: remaining excess reactant = ? n CO reacting = 1 mol CO 2 mol H 2 797 mol H 2 = 398 . 5 mol CO n excessreactant = 465 mol CO- 398 . 5 mol CO = 66 . 5 mol CO 003 (part 3 of 3) 10.0 points How much CH 3 OH is formed? Correct answer: 398 . 5 mol. Explanation: n limiting reactant = 797 mol H 2 amounts of CH 3 OH = ? mole ratio : 1 mol CH 3 OH 2 mol H 2 n CH 3 OH = 1 mol CH 3 OH 2 mol H 2 797 mol H 2 = 398 . 5 mol CH 3 OH 004 10.0 points Helium is used to inflate football-shaped bal- loons that will be released in Memorial sta- dium for the opening game of the football...
View Full Document

Page1 / 4

hmwk 3 solutions - mao (tm23477) Homework 3: Ideal gases...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online