Chapter 5 - Gases

Question 1

Physical characteristics of gas

Answer 1

• assume volume and shape of their containers
• will mix evenly and completely when confined in the same container
• gases have much lower density than liquids and solids

Question 2

Formula for force

Answer 2

Mass x acceleration

Question 3

1 atm is equal to how many torr

Answer 3

760 torr

Question 4

1 pascal equals

Answer 4

1 N/m^2

Question 5

How to find pressure in atmospheres when given mmHg

Answer 5

Divide by 760 mmHg

Question 6

1 atm and 760 mmHG equals this much kPa

Answer 6

1.01325 x 10^5

Question 7

Temperature must be in what measurement

Answer 7

Kelvin

Question 8

Celsius to kelvin

Answer 8

Celsius plus 273

Question 9

Fahrenheit to kelvin

Answer 9

(Fahrenheit - 32) x 5/9

Question 10

Ideal gas equation

Answer 10

P = nRT/V

Question 11

760 torr equals

Answer 11

760 mmHg

Question 12

Two formulas for Boyles law

Answer 12

P x V = Constant

P1 x V1 = P2 x V2

Question 13

How many liters does 1 mole of gas occupy

Answer 13

22.41 L

Question 14

Standard temperature of ideal gas

Answer 14

273 Kelvin (all temps should be in Kelvin)

Question 15

What does “R” equal

Answer 15

.082057 Liters x atm/mol x K

Question 16

Pressure formula

Answer 16

MolesxRxTemp in Kelvin/Volume

Question 17

Before and after pressure formula

Answer 17

P1 x V1 / n1 x T1 = P2 x V2/n2 x T2

Question 18

Density formula

Answer 18

m/V = P x M / R x T

m = mass in grams
M = Molar mass of gas

Question 19

Molar mass of gas formula

Answer 19

M = d x R x T / P

Question 20

Gas diffusion

Answer 20

Gradual mixing of gases by virtue of their kinetic properties

Question 21

Gas effusion

Answer 21

Gas under pressure escapes from one compartment of a container to another by passing through a small opening

Question 22

Convert torr to atm

Answer 22

Divide torr given by 760 torr to get pressure in atm

Question 23

Pressure should be converted to…

Answer 23

Atm always

Question 24

Convert torr to atm

Answer 24

Divide torr given by 760 torr to get pressure in atm

Question 25

R the constant is equal to…

Answer 25

.08206

Question 26

Convert moles to liters (volume)

Answer 26

Multiply moles given by 22.4 liters

Question 27

Convert torr to atm

Answer 27

Divide torr given by 760 torr to get atm for Pressure

Question 28

gas stoichiometry

Answer 28

Amount of reactant to moles of reactant to moles of product to amount of product

Question 29

Convert liters to moles

Answer 29

Divide liters by 22.4 liters

Question 30

Convert moles to liters

Answer 30

Multiply by 22.4 liters

Question 31

As temperature increases for a gas….

Answer 31

molecular speed increases as well (molecules move faster)

Question 32

Avogadros law equation

Answer 32

V1/n1 = V2/n2

Question 33

Charles law equation

Answer 33

V1/T1 = V2/T2