Comprehension-I11
2 g of brass containing Cu and Zn only reacts with 3 M
HNO, solution. Following are the reactions taking place
Cu(s) + HNO2 (aq) → Cu2+ (aq) + NO2(g) + H20(1)
Zn(s) + H+(aq) + NO3- (aq) → NH4+ (aq) + Zn2+ (aq) + H2O(1)
The liberated NO2(g) was found to be 1.04 L at 25°C and
1 atm [Cu = 63.5, Zn = 65.4]
Q1.find the percentage by mass of cu in brass?
Q2. Volume of HNO3 that was consumed
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Explanation:
volume of HNO3 that was consumed
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