Problem

Calcium carbonate, CaCO3, reacts with stomach acid(HCl, hydrochloric acid) according to th...

Calcium carbonate, CaCO3, reacts with stomach acid(HCl, hydrochloric acid) according to the following equation:

CaCO3(s) + 2HCl(aq) → CO2(g) + H2O(l) + CaCl2(aq)

One tablet of Tums, an antacid, contains 500.0 mg of CaCO3. If one tablet of Tums is added to 20.0 mL of a 0.100 M HCl solution, how many liters of CO2 gas are produced at STP?

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