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nintendogamer91
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nintendogamer91 asked in Science & MathematicsChemistry · 1 decade ago

Chem problem?

What mass in grams of potassium chloride is produced if 100g of potassium chlorate decompose according to the following equation?

2KClO3(s) (arrow with heat above it) 2KCl(s) + 3O2(g)

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  • John
    1 decade ago
    Favorite Answer

    1 mole KClO3 can produce 1 mole KCl

    molecular weight :KClO3=39.1+35.45+3*16 = 122.55

    KCl=39.1+35.45=74.55

    Assume the mass of KCl is x.

    122.55/100 = x/74.55

    so x=91.36 (g)

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