CH-2035
Titration calculations
Chemistry · Secondary 4 · Hard · Titration calculations
A 0.80 g sample contains only sodium sulfate, Na₂SO₄, and an inert impurity. It is dissolved in water to make 100 cm³ of solution. 25.0 cm³ of this solution requires 10.0 cm³ of 0.10 mol/dm³ barium nitrate solution for complete reaction.
What is the percentage by mass of Na₂SO₄ in the sample?
What is the percentage by mass of Na₂SO₄ in the sample?
- 35.5%
- 50.0%
- 71.0%
- 88.8%
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.