9
QuizMultiple Choice
Unit Test — Unit test
Question 9 • EO Chemistry 7320B
A sample of a hydrated compound has a mass of 5.1 g. During heating, it loses 1.1 g, leaving 4.0 g. What is the percentage by mass of water in the original hydrate?Use the formula
Answer
A
6.11%B
21.6%C
27.5%D
78.4%