4-1: Stoichiometry
Chapter 4
University of Arkansas at Little Rock
Dr. Robert Belford & Rebekah Reinhart




Question 1
How many grams of CaCl2 can be formed from 150.g HCl? Assume excess CaO. The unbalanced reaction is



(A)  114g
(B)  48.6g
(C)  228g
(D)  NOTA
 
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Question 2
How many grams of Fe(NO3)3 can be formed from 75.9g Fe2S3? Assume excess HNO3. The unbalanced reaction is

(A)  331g
(B)  44.2g
(C)  177g
(D)  NOTA
 
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Question 3
How many grams of Na2S can be formed from 115g NaCl? Assume excess Fe2S3. The unbalanced reaction is

(A)  76.8g
(B)  19.8g
(C)  153.6g
(D)  NOTA
 
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Question 4
How many grams of Mg3N2 can be formed from 75.0g Mg(OH)2? Assume excess NH3. The unbalanced reaction is

(A)  14.4g
(B)  43.3g
(C)  129g
(D)  NOTA
 
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Question 5
How many grams of Ca3(PO4)2 can be formed from 175g Ca(OH)2? Assume excess H3PO4. The unbalanced reaction is

(A)  314g
(B)  244g
(C)  58.3g
(D)  NOTA
 
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