The active ingredients of an antacid tablet contained only magnesium hydroxide and aluminum hydroxide. Complete neutralization of...

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Chemistry

Theactive ingredients of an antacid tablet contained only magnesiumhydroxide and aluminum hydroxide. Complete neutralization of asample of the active ingredients required 48.5mL of 0.187 Mhydrochloric acid. The chloride salts from this neutralization wereobtained by evaporation of the filtrate from the titration; theyweighed 0.4200g. What was the percentage by mass of magnesiumhydroxide in the active ingredients of the antacid tablet?

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