chemistry

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For the reaction:
Mg + 2 HCl => MgCl2 + H2

a) How many grams of HCl are required to react with 62.0 g of Mg?

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All of these stoichiometry problems are about alike.
1. Write and balance the equation.
2. Convert grams Mg to moles. moles = grams/molar mass.
3. Using the coefficients in the balanced equation, convert moles Mg to moles HCl.
4. Now convert moles HCl to grams HCL. g = moles x molar mass.

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