Please help with Gas Stoichiometry

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by Pinkpantherkat at April 21, 2011

Acetylene C2H2 which is used as a fuel in welding torches is produced in a reaction between calcium carbide and water: Determine the liters of acetylene produced at STP if 10.50g CaC2 reacts with 7.50g H2O

formula is

CaC2 (s) + 2H2O (l) --> Ca(OH)2 (aq) + C2H2 (g)