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Problem 37 Hard Difficulty

What is the empirical formula and empirical formula mass for each of the following compounds?
$\begin{array}{ll}{\text { (a) } \mathrm{C}_{4} \mathrm{H}_{8}} & {\text { (b) } \mathrm{C}_{3} \mathrm{H}_{6} \mathrm{O}_{3}} & {\text { (c) } \mathrm{P}_{4} \mathrm{O}_{10}}\end{array}$
(d) $\mathrm{Ga}_{2}\left(\mathrm{SO}_{4}\right)_{3} \quad$ (e) $\mathrm{Al}_{2} \mathrm{Br}_{6}$


a) $\mathrm{CH}_{2} ; \mathrm{Mr}\left(\mathrm{CH}_{2}\right)=14,01 \mathrm{g} / \mathrm{mol}$
b) $\mathrm{CH}_{2} \mathrm{O} ; \mathrm{Mr}\left(\mathrm{CH}_{2} \mathrm{O}\right)=30,01 \mathrm{g} / \mathrm{mol}$
c) $\mathrm{P}_{2} \mathrm{O}_{5} ; \mathrm{Mr}\left(\mathrm{P}_{2} \mathrm{O}_{5}\right)=141,94 \mathrm{g} / \mathrm{mol}$
d) $\mathrm{Ga}_{2}\left(\mathrm{SO}_{4}\right)_{3} ; \mathrm{Mr}\left(\mathrm{Ga}_{2}\left(\mathrm{SO}_{4}\right)_{3}\right)=427,62 \mathrm{g} / \mathrm{mol}$
$\mathrm{AlBr}_{3} ; \mathrm{Mr}\left(\mathrm{AlBr}_{3}\right)=266,68 \mathrm{g} / \mathrm{mol}$


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Video Transcript

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