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Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10 -12 m 2 can be expressed in scientific notation aas y x 10 x .The value of x is ..?

Silver has a density of 10.5gcm-3 . The no. of silver atoms on a surface area of 10-12mcan be expressed in scientific notation aas y x 10x.The value of x is ..?

Grade:11

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
6 years ago
in 108 gm of silver atom is Na wherW Na is the avagadro number
10.5gm occupies 1cm^3
108 gm occupies 10.28 cm^3
Na occupies 10.28 cm^2 considering one of the edges of cube as sconstant as 1cm
10.28cm^2 occupies Na
10^-12 occupies Na/10.28*10^-12
6*10^10
the value of x is 10

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