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10 February, 21:42

Students in a chemistry class added 5g of zinc (Zn) to 50g of hydrochloric acid (HCl). A chemical reaction occurred that produced zinc chloride (ZnCl2) and 6g of hydrogen gas (H2).

Zn + HCl à ZnCl2 + H2

What is the mass of the zinc chloride that was produced?

A. 49 g

B. 61 g

C. 55 g

D. Not enough information to determine the mass of the zinc chloride

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Answers (1)
  1. 10 February, 22:12
    0
    10. 36 g ZnCl2

    Explanation:

    Zn + 2HCl - > ZnCl2 + H2

    0.076 mol Zn

    1.37 mol HCl

    3 mol H2

    Limiting reactant: Zn

    1 mol Zn - > 1 mol ZnCl2

    0.076 mol Zn - >x x = 0.076 mol ZnCl2=10.36 g
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