How to calculte % compsotion for each trial of two-metal alloy (Al-Zn) reacting with HCL? Zn(s) + 2 H+ (aq) –> Zn2+ (aq) + H2 2 Al(s) + 6 H+(aq) –> 2 Al3+(aq) + 3 H2 Trial 1 mass alloy sample = 1.272 g and produced 0.0388 mol H2 Trial 2 mass alloy sample = 1.994 g and produced 0.0333 mol H2 Trial 3 mass alloy sample = 2.386 g and produced 0.0674 mol H2
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