AP chem review

8.1 - Intro to acids and bases

100

At 25 degrees Celsius, what range of pH would an acid have? 

Between 1-7 

200

What does it mean to have a neutral pH (at any temperature)?

H3O+ concentration = OH- concentration

300

What is the formula for the Autoionization of water?

2H₂O <---> H₃O+ + OH-

400

A solution has H₃O+ concentration of 1.6x10^-3 and an OH- concentration of 7.0x10^-9 

Would you expect this to be an acid or a base? Why?  

Acid

500

What is the pH of a solution with an OH- concentration of 6.4x10^-9

5.8

8.2 - Strong acids and bases

100

Which of the following is not a strong base?

NaOH,   Ca(OH)₂   H₂O

Water

200

What % of a strong acid/base dissociates? 

100% 

300

Rank the following from the lowest OH- concentration to the highest OH- concentration (once dissociation has occurred) (All starting with a solution concentration of .10 M)

NaOH,    Sr(OH)₂  , NH₄OH

NH₄OH,  NaOH,  Sr(OH)₂

400

What are the six strong acids?

HCl, HBr, HI, HNO_3, H₂SO₄, HClO₄

500

What is the pH of a 3.4x10^-5 M solution of Ca(OH)₂? 

9.8 

8.3 - Weak acids and bases

100

Which of the following is a weak acid?

HCl, HF, HBr

HF

200

Less than what percent of a weak acid/weak base dissociates? 

Less than 5%

300

What is the dissociation equation for acetic acid (CH₃COOH) in water 

CH₃COOH + H₂O <-----> CH₃COO- + H₃O+

400

A solution of F- has a % ionization of 2 %. The original molarity of the NaF that was added is .1M. What is the hydroxide ion concentration? 

.002 M

500

What is the pH of a .50 M ammonia (NH3) solution? Kb of ammonia is 1.8x10^-5

11.5 

Non-chemistry related topics

100

Whats the last team to win the superbowl?

Chiefs :( 

200

Who was the 16th president of the U.S.A. 

Abe Lincoln 

300

What country did the Olympics originate?

Greece

400

In the following sentence, which word is the adverb?

He quickly walked into the classroom.

Quickly

500

What year did My Beautiful Dark Twisted Fantasy come out?

2010

Past Units

100

What is the most electronegative element?

Fluorine

200

What is the shape of the following compound?

CH₄

Tetrahedral 

300

What is specific heat? (specific)

The heat required to raise temperature of one gram of a substance by one degrees Celsius

400

N2O4(g)⇌2NO

If the following reaction had its pressure increased, which direction would the reaction move towards? How do you know? 

Left, less moles

500

For the following unbalanced equation

__N₂ + _H₂ ---> _NH₃  

If we start with 10grams of nitrogen gas, how many grams of ammonia are produced?

12.159g