ICSE Class 10 Chemistry 2015 Solved Paper
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Consider the following reaction and based on the reaction answer the questions that follow :
( NH 4 ) 2 Cr 2 O 7
N 2 ( g ) + 4 H 2 O ( g ) + Cr 2 O 3
Calculate:
Calculate:
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Question : 61
Total: 85
the quantity in moles of nitrogen formed.
Solution:
If 252 gm ( NH 4 ) 2 Cr 2 O 7 g of N 2
Then63 g ( NH 4 ) 2 Cr 2 O 7 N 2 =
= 7 g .
No. of moles ofN 2 =
= 0.25
Then
No. of moles of
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