In a certain​ chemical, the ratio of zinc to copper is 4 to 11 . A jar of the chemical contains 308 grams of copper. How many grams of zinc

Question

In a certain​ chemical, the ratio of zinc to copper is 4 to 11 . A jar of the chemical contains 308 grams of copper. How many grams of zinc does it​ contain?

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Thiên Ân 4 years 2021-08-29T00:39:07+00:00 1 Answers 6 views 0

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  1. Nem
    0
    2021-08-29T00:41:05+00:00
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    Answer: 82.3 g

    Step-by-step explanation:Moles Cu = 300 g x 1 mol Cu/63.55 g = 4.72 moles Cu

    Moles Zn = 4/15(4.72) = 1.26 moles

    mass Zn = 1.26 moles x 65.38 g/mol =

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