Question

Solid ammonium dichromate decomposes as under:
$\begin{gathered}{\begin{array}{c} \sf \pink{(NH_{4})_{2}Cr_{2}O _{7} → N_{2} \: + \: Cr_{2}O_{3} + 4H _{2}O }\end{array}}\end{gathered}$
If 63g of ammonium dichromate decomposes, calculate:
(a) the quantity in moles of ammonium dichromate.
(b) the quantity of moles of nitrogen formed.
(c) the volume of N2 evolved at STP.
(d) loss of mass
(e) the mass of chromium (III) oxide formed at the same time.

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Answer 1

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Answer 2

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