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Put about 50 cm3 of water in a beaker and add baking powder, sodium bicarbonate, gradually
while stirring. Potassium sulphate is an alternative substance. Make a saturated solution by
stirring until no more solute will dissolve. Read the temperature of the saturated solution.
Weigh a clean evaporating dish, w1. Add some clear saturated solution and weigh again, w2.
Carefully evaporate the solution in the evaporating dish to dryness and weigh again, w3. The
mass of the sodium bicarbonate dissolved = w3 - w1. The mass of water = w2 - w1 - w3.
Calculate the solubility of the sodium bicarbonate as g per 100 g water at room
temperature.
sharon kalunda answered the question on April 12, 2019 at 06:55
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