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The number of Hydrogen ions in 1.0dm3 of 0.02\(moldm^...

The number of Hydrogen ions in 1.0dm3 of 0.02moldm3 tetraoxosulphate(VI) acid is   [NA=6.02×1023]

A.

1.2×1022

B.

1.2×1023

C.

2.4×1022

D.

2.4×1023

Correct answer is A

1mole=6.02×1023ions

0.02moldm3=0.02×6.02×1023

=0.1204×1023=1.204×1022