Worksheet: Tests for Anions

In this worksheet, we will practice describing the use of acid–base and precipitation reactions to test for the presence of nitrates, sulfates, and carbonates.

Q1:

When 0.4550 g of a solid sample containing magnesium sulfate is dissolved in an aqueous solution of excess barium nitrate, 0.6168 g of barium sulfate precipitates. Calculate to 3 significant figures the mass of magnesium sulfate in the sample as a percentage of the total sample mass.

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