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How is Avogadro's number denoted ?...

How is Avogadro's number denoted ?

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Explain the term Avogadro's number and mention some methods for determination of Avogadro's number. What is significance of Avogadro's number?

Calculate the value of Avogadro's number from the following data Density of NaCl=2.165"g cm"^(-3) . Distance between Na^(+)andCl^(-) in NaCl crystal = 281 pm.

By X-ray diffraction it is found tht nickel ("at mass"=59g "mol"^(-1)) , crystallizes with ccp. The edge length of the unit cell is 3.5 Å . If density of Ni crystal is 9.0g//cm^(3) , then value of Avogadro's number from the data is:

Estimate the average mass density of a sodium atom assuming its size to be about 2.5 overset@A . (Use the known values of Avogadro’s number and the atomic mass of sodium). Compare it with the density of sodium in its crystalline phase : 970 kg m^-3 . Are the two densities of the same order of magnitude ? If so, why ?

Write the value of Avogadro's number.

When the universal gas constant (R ) is divided by Avogadro's number (N_(0)) , their ratio is called

Calculate the most probable speed of a molecule of hydrogen at N.T.P. The Boltzmann constant is 1.38 xx 10^-23 J per degree and Avogadro's number is 6 xx 10^26 per kg mole.