## Chemistry: The Central Science (13th Edition)

Published by Prentice Hall

# Chapter 1 - Introduction: Matter and Measurement - Additional Exercises: 1.88c

99.987%.

#### Work Step by Step

From a total of 7.748mg of Hg, 7.747 were filtered. $\frac{7.748}{7.747}$ = $\frac{100}{x}$ 7.748x = 7.747 $\times$ 100 7.748x = 774.7 x = $\frac{774.7}{7.748}$ x = 99.987

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