CHEM 001B Lecture Notes - Lecture 7: Combined Gas Law, Ideal Gas Law, Ideal Gas

• School: UC Riverside
• Department: Chemistry
• Course: CHEM 001B
• Professor: Quan Cheng

Document Summary

Ideal gas law: pv = nrt: n = 0. 08206 l x atm/ k x mol. Bonus points will be given (15 points for midterm. = a (cid:454) h (cid:454) d / a. H2o vs hg p = 1 atm = 760 atm. Stoichiometry calculations: gases: stoichiometry calculations, depend on mole/mole ratios of reactants and/or products, n = pv/rt. Automobile air bags inflate during a crash or a sudden stop by a rapid generation of n2(g) from sodium azide: 2 nan3(s) 2 na(s) + 3 n2(g) How many grams of sodium azide (mw = 65. 01 g/mol) are needed to produce sufficient n2(g) to fill (cid:1008)(cid:1009)(cid:454)(cid:1008)(cid:1009)(cid:454)(cid:1006)(cid:1009) (cid:272)(cid:373) (cid:271)ag to a pressure of (cid:1005). (cid:1006)(cid:1004) at (cid:1005)(cid:1009) c. V = 45 x 45 x 25 cm3 = 5=625 cm3. T = 288 k n = 2. 57 moles mole of nan3 / mole of n2 = 2 / 3. 2 / 3 x 2. 57 moles = 1. 7133 mol.