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If the density of NaCl =2.165gcm^(-3) an...

If the density of NaCl =2.165g`cm^(-3)` and the distance between `Na^(+)`and `Cl^(-)` = 281 pm,Avogadro's number is equal to

A

`7xx10^(23) mol ^(-1)`

B

`8xx10^(23) mo^(-1)`

C

`6xx10^(23) mol^(-1)`

D

`4xx10^(23) mol^(-1)`

Text Solution

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The correct Answer is:
C
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Calculate the value of Avogadro's number from the following data: Density of NaCl = 2.165 g cm^(-3) Distance between Na^(o+) and Cl^(Θ) in NaCl = 281 pm

Calculate the value of Avogadro's number from the following data : Density of KF = 2.48 " g cm"^(-3) . Distance between K^(+) and F^(-) KF = 269 pm. (Atomic masses : K = 39 and F = 19 amu)

The distance between Na^+ and Cl^- ions in NaCl with a density 3.165 g cm^(-3) is

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