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A piece of brass (Cu and Zn) weighs 12.9...

A piece of brass (Cu and Zn) weighs 12.9 g in air. When completely immersed in water, it weights 11.3 g. The relative densities of Cu and Zn are 8.9 and 7.1 respectivey. Calculate the mass of copper in the alloy

A

6.6 gm

B

7.6 gm

C

8.6 gm

D

5.6 gm

Text Solution

Verified by Experts

The correct Answer is:
B
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