Post Utme Oau 2017 Biology Question 10
Practice objective / multiple choice question 10 from the 2017 Post Utme Oau Biology examination.
A 50-g sample of a mixture containing 25% NaCl and 75% H2O is heated to produce water vapor. If 20 g of water vapor is collected, what is the mass of NaCl in the original sample?
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This is Post Utme Oau 2017 Biology Question 10. It is one of the objective questions from the 2017 Post Utme Oau Biology examination.
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