Question

The no of formula unit in 29.25g of common salt-
(1)3.01×10^23
(2)2×Na
(3)4×Na
(4)Na

Answer 1

✩ HI FRIEND....!! ✩

The number of formula unit in 29.25g of common salt ( NaCl ) is :

A. 3.01 x 10 ^ 23

★ HOPE IT HELPS YOU FRIEND !!! ★

Answer 2

Answer: 3.01 x 10^23

Explanation:

One mole of a crystalline solid contains Avogadro number of molecules i.e. 6.02 x 10^23

So, calculate the number of moles for given mass of NaCl

29.25/58.5 = 0.5 moles

no. of formula units = 0.5 x 6.02 x10^23

                             = 3.01 x 10^23