AP QUIZZES - AP TOPIC 4 Stoichiometry SET C
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QUESTION 1. Consider the reaction below. How many moles of FeS2 will react with 6.00 moles of oxygen?

4FeS2 + 11O2 ==> 2Fe2O3 + 8SO2


(A) 6.00
(B) 11.0
(C) 2.18
(D) 2.75
(E) 0.545

QUESTION 2. When using the Beer Lambert Law, what happens to Absorbance as the concentration of a colored solution goes up?

(A) Absorbance goes up
(B) Absorbance goes down
(C) Absorbance stays the same
(D) Not enough data to tell
(E) None of the Above

QUESTION 3. What would be the expected final mass when 5.6600 g of Copper (II) Sulfate pentahydrate is heated to a constant mass?

(A) 3.6224 g
(B) 2.0376 g
(C) 0.11320 g
(D) 0.022640 g
(E) None of the Above

QUESTION 4. What volume of 0.211 M KOH must be used to neutralize 23.1 mL of 2.30 M sulfuric acid?

(A) 504 mL
(B) 252 mL
(C) 126 mL
(D) 23.1 mL
(E) None of the Above

QUESTION 5. What is the mass of one atom of Sulfur?

(A) 6.02 x 1023 g
(B) 32.0 g
(C) 5.32 x 10-23 g
(D) 1.93 x 1025 g
(E) None of the Above




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