1.

The number of gram molecules of chlorine in6.02 xx 10^(25) hydrogen chloride molecules is

Answer»

10
100
50
5

Solution :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.


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