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This question was created from CH110-120_Midterm_1_2014_A


1. When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water
are produced according the following unbalanced equation:
CaCO3 (s) + HCI (aq) > CaCl2 (aq) + H2O (1) + CO2 (g)
(2 points) (a) Write out the full balanced equation.
(6 points) (b) What volume of carbon dioxide will be produced when 31.0 g of calcium carbonate are
combined with 13.0 g of hydrochloric acid under standard temperature and pressure (STP; that is,
temperature is 273.15 K and pressure is 1.00 bar.)
Molar masses: CO2= 44.0095 g/mol; CaCO3=100.08 g/mol; HCI = 36.461 g/mol

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