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Over an interval of 1second (s) the mass of Mg(s), in the reaction below, changes by -0.011g. What is the corresponding rate of consumption of HCl(aq) in mol/second (mol/s).

Mg(s) + 2HCl -> MgCl2(aq) +H2(g)

1 answer

0.011/24.3 = 0.00045 mols Mg/s
HCl = twice that.
grams HCl = mols x molar mass = ?
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