Chem Mastery Mixed Stoich Set 2

3 Questions
Chem Mastery Mixed Stoich Set 2
Sample Question

Ethylene burns in oxygen to form carbon dioxide and water vapor: C2H4(g) + 3 O2(g) --> 2 CO2(g) + 2 H2O(g) How many dm3 of water can be formed if 1.25dm3 of ethylene are consumed in this reaction?

2.30dm3

2.40dm3

2.50dm3

2.60dm3

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Questions and Answers
  • 1. 
    Ethylene burns in oxygen to form carbon dioxide and water vapor: C2H4(g) + 3 O2(g) --> 2 CO2(g) + 2 H2O(g) How many dm3 of water can be formed if 1.25dm3 of ethylene are consumed in this reaction?
    • A. 

      2.30dm3

    • B. 

      2.40dm3

    • C. 

      2.50dm3

    • D. 

      2.60dm3

  • 2. 
    If I combined 15.0 grams of calcium hydroxide with 75.0cm3 of 0.500 M HCl, how many grams of calcium chloride would be formed? Ca(OH)2(s) + 2 HCl(aq) --> CaCl2(aq) + 2 H2O
    • A. 

      2.08g

    • B. 

      2.18g

    • C. 

      2.28g

    • D. 

      2.38g

  • 3. 
    Na2SO3(aq) + BaCl2(aq) --> BaSO4(s) + 2NaCl(aq) Barium chloride solution is added to 25.00cm3 of a 0.500M sodium sulphate solution until no more precipitate forms. What mass of barium sulphate forms?
    • A. 

      2.82g

    • B. 

      2.92g

    • C. 

      3.02g

    • D. 

      3.12g