The number of gram molecules of chlorine in `6.02 xx 10^(25)` hydrogen chloride molecules is

Options

A. 10
B. 100
C. 50
D. 5

Answer

C

Explanation

Number of HCI molecules = `6.02 xx 10^(25)` molecules
Number of moles of HCI = `(6.02 xx 10^(25))/(6.02 xx 10^(23)) = 100` moles.
`therefore` Gram molecular mass of chlorine in ` 6.023 xx 10^(25)` molecules of HCI = 100/2 = 50.