ryleegus ryleegus

23-03-2020
Chemistry

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how many moles of PbS are equivalent to 458g PbS

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hollandgrzesiak hollandgrzesiak

23-03-2020

Answer: 1.91 moles PbS

Explanation: You have to divide 458g PbS by its molar mass (239.27g/mol). The grams will cancel out and you'll be left with 1.91 moles PbS. The answer will have 3 sig figs.

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