### Elements $X(\text {green})$ and $\mathrm{Y}$ (pur…

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Problem 119

Calculate each of the following quantities:
(a) Amount (mol) of 0.588 g of ammonium bromide
(b) Number of potassium ions in 88.5 $\mathrm{g}$ of potassium nitrate
(c) Mass (g) of 5.85 mol of glycerol $\left(\mathrm{C}_{3} \mathrm{H}_{8} \mathrm{O}_{3}\right)$
(d) Volume (L) of 2.85 $\mathrm{mol}$ of chloroform $\left(\mathrm{CHCl}_{3} ; d=1.48 \mathrm{g} / \mathrm{mL}\right)$
(e) Number of sodium ions in 2.11 mol of sodium caa
(f) Number of atoms in 25.0$\mu \mathrm{g}$ of cadmium
(g) Number of atoms in 0.0015 mol of fluorine gas

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Chapter 3
Stoichiometry of Formulas and Equations
CHEMISTRY: The Molecular Nature of Matter and Change 2016

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