1. What is the % by mass of a salt solution prepared by dissolving 15 grams of s...

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August 2022 2 5 Report

1. What is the % by mass of a salt solution prepared by dissolving 15 grams of salt in 120 grams of solution?

2. What is the % by volume of a solution containing 20ml of alcohol and 140ml of water?

3. A solution of gases contains 25g Oxygen, 50g Helium, and 50g Nitrogen. What is the percentage by mass composition of the solution?

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