Question

The number of gram atoms of oxygen present in 0.1mole of H2S2O8
(1)0.2
(2)8
(3)1.6
(4)0.8

Anyone please tell me with step by step explanation...​

Answer 1

no. of oxygen atoms in H2S2O8 = 8 oxygen atom

now, no. of gram atom of oxygen = 0.1×8

0.8 gram atoms of oxygen is present in H2S2O8.

D options is correct answer