Neco Model Questions Vol1 2021 Chemistry Question 17
Practice objective / multiple choice question 17 from the 2021 Neco Model Questions Vol1 Chemistry examination.
A 10.0 g solid mixture of sodium carbonate (Na_{2}CO_{3}) and sodium bicarbonate (NaHCO_{3}) is heated strongly. After heating, the mass of the solid residue is 7.5 g. Assuming that only carbon dioxide and water are lost from the decomposition of NaHCO_{3}, calculate the mass percentage of NaHCO_{3} in the original mixture.
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About This Question
This is Neco Model Questions Vol1 2021 Chemistry Question 17. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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