Class Notes #18 – How to handle chemical reaction math (part I) 1. The average person eliminates 25.5 g of urea per day.

Class Notes #18 – How to handle chemical reaction math (part I) 1. The average person eliminates 25.5 g of urea per day. What mass of potassium hydroxide is needed to

react completely with this mass of urea? Give your answer in grams. Use proper significant digits.

2. What mass of hydrogen gas could be produced from the reaction of 25.5 g of urea and 25.5 g KOH? Give your answer in grams. Use proper significant digits.

3. Given your answer to Question 2, is human urine a viable source of hydrogen gas? There is no right or wrong answer but you must provide an answer to earn the points.

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