A calcium carbonate tablet dissolves with stomach acid which contains hydrochloric acid. CaCO3 (s) + HCl (aq) -------- CaCl2 (aq) + H2O (l) + CO2 (g)
How many calcium carbonate tablets each containing 500mg of the active ingredient are required to react with 4. g of stomach acid containing 37.5 % HCL by mass?