Final Exam Study Packet

Question 1

Limiting Reagent

Answer 1

Reactant that produces the LEAST product

1. Calculate the amount of product with REACTANT ONE.
2. Calculate the amount of product with REACTANT TWO.

SMALLEST AMOUNT OF PRODUCT? Limiting Reagent.

Question 2

Thermochemistry ENDOTHERMIC REACTION

Answer 2

Positive delta H

ABSORBS energy

Melting (solid to liquid)

Vaporization (liquid to gas)

Question 3

Thermochemistry

EXOTHERMIC REACTION

Answer 3

Negative delta H

RELEASES energy

Freezing (liquid to solid)

Condensation (gas to liquid)

Question 4

Thermochemistry

Endothermic vs Exothermic phase changes

Answer 4

Question 5

Gases

Atmopheric Pressure

(

in Torr, mmHG, KPa, atm)

Answer 5

1 atm

760 Torr

760 mmHG

101.3 KPa

Question 6

Gases

Ideal Gas Law

Answer 6

PV = nRT

Question 7

Gases

Charles’ Law

Answer 7

Assumptions:

Constant n (moles), Constant P (pressure)

Question 8

Gases

Boyle’s Law

Answer 8

Assumptions:

Constant n (moles), Constant T (temperature)

Question 9

Dalton’s Law (Partial Pressures)

Answer 9

Question 10

Dalton’s Law (Partial Pressures)

Answer 10

Question 11

Solutions (Saturated, Unsaturated, Supersaturated)

Answer 11

Question 12

Solutions: Colligative Properties

Answer 12

Properties of a solution that CHANGE when you increase solute

Question 13

Solutions: Colligative Properties

Answer 13

Question 14

Solutions: Colligative Properties

Answer 14

Question 15

Acids/Bases

pH = ?

Answer 15

pH = -Log₁₀[H⁺]

Question 16

Acids/Bases

pOH = ?

Answer 16

pOH = -Log₁₀[OH^-]

Question 17

If pH = 9, what is [H+]?

Answer 17

pH = 9

-Log₁₀[H⁺] = 9

Log₁₀[H⁺] = -9

10^-9 = [H⁺]

Question 18

pH + pOH = ?

Answer 18

14

Question 19

Strong Acids and Bases

(Assume complete dissociation)

Answer 19

Question 20

Intermolecular Forces

Answer 20