(i) What is avagadro Constant?
(ii) Calculate the number of particles present in 56g of `N_(2)` molecules.

Explanation

(a) For defination, consult seciton 3.11
(b) 28 g of `N_(2)` have molecules or particle `= N_(A) = 14 xx 2 = 28 g`
56 g of `N_(2)` have molecules or particle `= N_(A) = 6.022 xx 10^(23) xx 2 = 1.024 xx 10^(24)`