Question

If 32g of sulphur has x atoms, then the number of atoms in 32g of oxygen will be: a) x/2 b) 2x c) x d) 4x

Answer 1

Explanation:

Correct option is

B

2x

Atomic mass of sulphur is 32g(mol)

−1

. Therefore, number of moles of sulphur is 1 and it contains 6.022×10

23

atoms i.e avogadro's number. et number of sulphur atoms be x. Therefore, in 32g of oxygen it contains 2 moles as atomic mass of oxygen is 16g(mol)

−1

and hence it will contain 2×6.022×10

23

atoms i.e 2x