Igcse Model Questions Vol1 2019 Chemistry Question 10
Practice objective / multiple choice question 10 from the 2019 Igcse Model Questions Vol1 Chemistry examination.
The solubility of potassium nitrate, \(\mathrm{KNO_3}\), is 31.6 g per 100 g water at 20 °C and 109 g per 100 g water at 60 °C. A student adds 150 g of solid \(\mathrm{KNO_3}\) to 200 g of water at 20 °C and then heats the mixture to 60 °C until all the solid dissolves. After the solution is cooled back to 20 °C, how many grams of \(\mathrm{KNO_3}\) will crystallise out?
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About This Question
This is Igcse Model Questions Vol1 2019 Chemistry Question 10. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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