University:
Bradley University
Course:
CHM 100 | Fundamentals of General Chemistry
Academic year:

2023
Views:

286

Pages:

2
Author:

Adriel Kelley

NSM 12C PAL Worksheet Gas Laws Name: _____________ Constants & Equations: 1. Calculate the height in meters of a column of liquid glycerol (density = 1.26 g/cm3) required to exert the same pressure as 760 mmHg (d= 13.60 g/cm3). 2. To what volume will a sample of gas expand if it heated from 50.0°C and 2.33 L to 500.0°C? 3. A balloon filled with helium gas at 20oC occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -‐196oC, while the pressure is raised to 5.20 atm. What is the volume of the balloon in the liquid nitrogen? 4. A 0.465 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. What is the molar mass of the unknown compound? 5. Potassium chlorate decomposed upon heating to form potassium chloride and oxygen. Determine the volume of O2 (at STP) formed when 50.0 g of potassium chlorate (122.55 g/mol) decomposes. 6. A 34.8 mL sample of an unknown, water-‐insoluble gas was collected over water at 22.6oC and a barometric pressure of 0.895 atm. When the gas was dried and chilled, it formed 114.6 mg of liquid. What was the molar mass of this substance? [The vapor pressure of water at 22.6oC is 20.mmHg]