Homework Set 3
Pre AP Chemistry: Acid-Base Chemistry and Stoichiometry
Due: Beginning of Class Monday March 26
Provide the answers to the following questions. Show all of your work with correct units throughout your
calculations and final answers. Box or circle your final answer.
1. What are the differences between acids and bases (taste and litmus paper properties)?
2. What is the Arrenhius definition of an acid and base?
3. What is the Brønsted-Lowry definition of an acid and base?
4. What are the formulas of all the strong acids and strong bases.
5. What is the difference between strong acid/bases and weak acid/bases.
6. Complete the chart.
Concentration
+
[H ] = 1 x 10
pH
pOH
Acidic, Basic, or Neutral
-3
[OH-] = 7.65 x 10-1
[OH-] = 3.4 x 10-3
[H+] = 8.88 x 10-4
[OH-] = 1.45 x 10-7
[H+] = 1.00 x 10-7
7. Use the following reaction to answer all parts of this question: C + SO2  CS2 + CO
a. Balance the reaction.
b. How many moles of CS2 form when 2.7 moles of C react?
c. How many moles of C are needed to react with 5.44 mol SO2?
d. How many moles of CO form at the same time that 0.246 moles of CS2 forms?
e. How many moles of SO2 are required to make 118 moles CS2?
8. Use the following reaction to answer all parts of this question: CO + H2  CH3OH
a. Balance the reaction.
b. How many moles of each reactant are needed to produce 3.60.g CH3OH?
c. How many grams of H2 are needed to react with 2.85 mol CO?
d. How many grams of CO are needed to produce 58.3 grams CH3OH?
e. How many grams of H2 are needed to produce 58.3 grams of CH3OH?
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