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? asked in Science & MathematicsChemistry · 7 years ago

BEST ANSWER: Easy Chemistry problem?

please explain with work

2HgO -->2Hg+O2

a sample of HgO weighing 7.22g was heated. The collected mercury weighed 5.95g. What was the percentage yield of the reaction.

i know its actual/theoretical x100 but theres a trick.

1 Answer

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  • Anonymous
    7 years ago

    No trick. You need to know the molecular weights of mercury and oxygen, respectively. Then it is a simple matter of working out the proportions, assuming 100% efficiency, and dividing actual yield by theoretical 100% yield before you multiply your answer by 100.

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