Chemistry > 2008 > 16
WASSCE
Consider the reaction represented by the following equation:
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
What volume of hydrogen gas is produced at s.t.p. when 3.25g of zinc reacts with excess dilute HCl?
[Zn = 65, Molar gas volume at s.t.p = 22.4dm3]
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
What volume of hydrogen gas is produced at s.t.p. when 3.25g of zinc reacts with excess dilute HCl?
[Zn = 65, Molar gas volume at s.t.p = 22.4dm3]
A.
1.12 dm3
B.
2.24 dm3
C.
4.48 dm3
D.
8.96 dm3
Answer: A
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