Question

The number of molecules of water in 333 g of Al, (SO),. 18H,O is :
(A) 18.0 * 6.02 x 1023 (B) 9.0 * 6.02 x 1023 (C) 18.0
(D) 36.0​

Answer 1

Explanation:

Molar mass of Al2(SO4)3 = 342 g

333g of Al2(SO4)3 = 0.97 moles

In one mole there is 18 molecules of water

In 0.97 moles there is 0.97 x18

Aprox 18 molecules

So option C is correct