Homework Help: chemistry

Posted by Keen on Monday, October 8, 2012 at 6:01pm.

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)

chemistry - DrBob222, Monday, October 8, 2012 at 8:55pm
0.011/24.3 = 0.00045 mols Mg/s
HCl = twice that.
grams HCl = mols x molar mass = ?

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