Asked by Enid

When 2.5g of ammonium dichromate is heated, the mass of nitrogen and water vapor released is 1.0g. What is the final mass of the solid product?
Answered by DrBob222
(NH4)2Cr2O7 → Cr2O3 + N2 + 4H2O
.....2.5...................x........[1.0g]
The Law of conservation of mass tells you that you don't lose anything.
2.5 = mass Cr2O3 + 1.0
mass Cr2O3 = ?
Answered by Ifrah
Cr203=1.5 grams
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