Ideal Boyles Lussac Charles Combined Gas Laws Day 1 Ideal Boyles Lussac Charles Combined

When doing word problems…. Find the question word: determine what you are looking for. What #s did the problem give you If only one # always start grid with that # If Multiple #’s you need a formula

Variables that describe a Gas P= Pressure T = Temperature n= Amount V= Volume

Ideal Gas Law PV =nRT R = gas constant R = 8.31 LkPa R= 0.0821 Latm moleK moleK R= 62.4 mmHg L all other units can mole K be converted

Practice Gas Law Worksheet

1. Calculate the pressure, in atmospheres, exerted by each of the following: a. 250L of gas containing 1.35 moles at 320K b. 4.75L of gas containing 0.86 moles at 300K.  

2. Calculate the volume, in liters, occupied by each of the following: a. 4 grams of H2 at 300K and 1.25 atm.   b. 0.425 moles of ammonia gas (NH3) at 10.5 PSI and 37C.

3. Determine the amount: Finish for homework: answer: 0.51g a. In moles, of 1.25L of O2 at 805.6 mmHg and 250K. b. In grams, of 0.80L of ammonia gas at 0.925 atm and 27C. Finish for homework: answer: 0.51g

Gas Laws

Bath Time Boyle’s Law Temp Constant

Leaves Very Lussac’s Law Volume Constant

Clean People Charles’s Law Pressure Constant

Combined Gas Law

4. A 550.0 mL sample of nitrogen gas is warmed from 77.0C to 80.0C. Find the new volume if the pressure remains constant. What law does this situation follow?

5. Convert 338L at 6.38 x 103 kPa to its new volume at standard pressure. What law does this situation follow?

Finish the rest for homework 6) 0.031 atm 10) 111 PSI 7). 26.6 L 11) 318 K 8). 29.6 L 12) 3.05 x 104 L 9) 2.2 L