A 0.5895-gram sample of impure magnesium hydroxide is dissolved in 100.0 mL of 0.2050 M HCl. The excess acid then needs 19.85 mL of 0.1020 M NaOH for neutralization. Calculate the percent by mass of magnesium hydroxide in the sample, assuming that it is the only substance reacting with the HCl solution.

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goldserval389Lv1

2 Jun 2021

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