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23 Nov 2019
0.2500 g sample of an Al-Zn alloy reacts with HCl to form hydrogengas:
Al(s) + 3H+(aq) ? Al3+(aq) + 3/2H2(g)
Zn(s) + 2H+(aq) ? Zn2+(aq) + H2(g)
The hydrogen produced has a volume of 0.147 L at 25°C and 755 mmHg. What is the
percentage of zinc in the alloy?
0.2500 g sample of an Al-Zn alloy reacts with HCl to form hydrogengas:
Al(s) + 3H+(aq) ? Al3+(aq) + 3/2H2(g)
Zn(s) + 2H+(aq) ? Zn2+(aq) + H2(g)
The hydrogen produced has a volume of 0.147 L at 25°C and 755 mmHg. What is the
percentage of zinc in the alloy?
29 May 2023
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