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21 November, 16:28

A chemist determined by measurements that moles of calcium sulfide participate in a chemical reaction. Calculate the mass of calcium sulfide that participates.

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  1. 21 November, 18:57
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    corrected question:

    A chemist determined by measurements that 0.03 moles of calcium sulfide participate in a chemical reaction. Calculate the mass of calcium sulfide that participates

    Answer:

    Explanation:

    number of moles of CaS

    molar mass of CaS = 40+32 = 72g/mol

    number of moles = mass / molar mass

    mass = number of moles * molar mass

    mass = 0.03 * 72

    mass of calcium sulfide = 2.16g
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