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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Calculate the molar mass of the following compound:
$\mathrm{Ca}(\mathrm{OH})_2$
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Answer

The molar mass of calcium hydroxide i.e. $\mathrm{Ca}(\mathrm{OH})_2$ is $40 \mathrm{~g} / \mathrm{mol}+2 \times 16 \mathrm{~g} / \mathrm{mol}+2 \times 1 \mathrm{~g} / \mathrm{mol}=74 \mathrm{~g} / \mathrm{mol}$.

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