Stoichiometry I
Chapter 4
	University of Arkansas at Little Rock Dr. Robert Belford

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Question 1 The thermal decompostion of potassium chlorate results in the formation of potassium chloride and oxygen. How many grams of potassium chloride are formed when 2.45 g of potassium chlorate completely decomposed? (A)  0.89g (B)  2.45g (C)  1.49g (D)  0.097g   Hint Your response Not answered yet

Question 2 The thermal decompostion of potassium chlorate results in the formation of potassium chloride and oxygen. How many grams of oxygen are formed when 2.45 g of potassium chlorate is completely decomposed? (A)  0.98g (B)  2.45g (C)  0.87g (D)  0.960g   Hint Your response Not answered yet

Question 3 Magnesium hydroxide reacts with phosphoric acid to produce magnesium phosphate and water. What is the maxiumum quantity (in grams) of magnesium phosphate that can be produced if 2.00 g of magnesium hydroxide is added to 2.10g of phosphoric acid? (A)  2.81g (B)  3.67g (C)  2.0g (D)  2.10g   Hint Your response Not answered yet

Question 4 A student performs the reaction in question 3 and gets a yield of 2.67g. What is the percent yield of the students work? (A)  105% (B)  100.% (C)  88.0% (D)  95.0%   Hint Your response Not answered yet