An antacid tablet contains sodium hydrogen carbonate, NaHCO 3 , and inert ingredients. A 0.465-g sample of
Question:
An antacid tablet contains sodium hydrogen carbonate, NaHCO3, and inert ingredients. A 0.465-g sample of powdered tablet was mixed with 53.3 mL of 0.190 M
HCl (hydrochloric acid). The mixture was allowed to stand until it reacted.
NaHCO3(s) + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)
The excess hydrochloric acid was titrated with 54.6 mL of 0.128 M NaOH (sodium hydroxide).
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
What is the percentage of sodium hydrogen carbonate in the antacid?
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From NaHCO 3 HCl NaCl H 2 O CO 2 and HCl NaOH NaCl H 2 O we write Mol NaH...View the full answer
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