1.

Calculate the number of molecules of SO_(2) present in 44 g of it.

Answer»

SOLUTION :The molar MASS of `SO_(2)` = 32 + 32 = 64G
The number of molecules = `("GIVEN mass")/("molar mass") xx "Avogadro constant"`
`=(44)/(64) xx 6.022 xx 10^(23) = 4.14 xx 10^(23)`


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