Asked by Julie

How many liters of hydrogen at STP can be produced by the reaction of 4.15 g of zinc with hydrochloric acid:
Zn + 2HCl -> ZnCl2 + H2
Answered by bobpursley
for every mole of zinc, you get 22.4liters of H2
How many moles of zinc is 4.15g?
Answered by Julie
that doesn't make sense to me... can you give me a step by step walk through?
Answered by DrBob222
Zn + 2HCl ==> ZnCl2 + H2
moles Zn = 4.15/molar mass Zn = xx.
xx moles Zn will produce xx moles H2 (since 1 mole Zn produces 1 mole H2 according to the equation.)
xx moles H2 x (22.4 L/1 mol) = yy liters H2. Voila!
Answered by Christina
1.41 L of H2?
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