userdata-paziras-Chem101-Chap_05A

Examples 1 magnesium

Info iconThis preview shows page 1. Sign up to view the full content.

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

Unformatted text preview: R T Ideal Gas Equation Chemistry 101 Chapter 5 The Ideal Gas Law · To determine the value of R (Mo lar Gas Constant), consider exact ly 1 mo l o f gas at STP. P = 1.00 atm T = 273 K n = 1.00 mol V = 22.4 L R = ? P V = n R T P V (1.00 atm) (22.4 L) R = ¾¾¾ = ¾¾¾¾¾¾¾¾¾ n T (1.00 mol) (273 K) L . atm R = 0.0821 ¾¾¾¾ K . mol Examples: 0 1. What is the pressure in a 50.0 L tank that contains 3.03 kg of oxygen gas at 23 C ? V = 50.0 L 1 mol O2 n = 3,030 g x ¾¾¾¾ = 94.69 mol O2 32.00 g O2 0 T = 23 C + 273 = 296 K L . atm R = 0.0821 ¾¾¾ K . mol P = ? n R T P = ¾¾¾ V L atm )(296 K ) K mol = 46.0 atm 50.0 L (94.69 mol )(0.0821 P = P V = n R T 19 Chemistry 101 Chapter 5 Examples: 2. What is the densit y o f carbon dio xide gas (in g/L) at STP ? m d = ¾ V For 1 mol of CO2, at STP: m = 12.01 g + 32.00 g = 44.01 g V = 2...
View Full Document

This document was uploaded on 03/18/2014 for the course CHEM 101 at Los Angeles Mission College.

Ask a homework question - tutors are online