Answer to Question #20001 in Other Chemistry for Kat
be represented by the unbalanced chemical
Mg(s) + HCl(aq) −! MgCl2(aq) + H2(g) .
What mass of HCl is consumed by the reac-
tion of 3.17 mol of magnesium?
Answer in units of g
n(Mg) = m/M
n(Mg) = 3.17/24 = 0.132083333 mol
Mg(s) + 2HCl(aq) −! MgCl2(aq) + H2(g)
n(Mg) = 2n(HCl) = 0.2641mol
m(HCl) = M*n
m(HCl) = 36.5*0.2641 = 9.63965 g
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