Question

The formula weight of h2 so4 is 98. The weight of the acid in 400 ml of 0.1 m solution is



a.2.45 g (b) 3.92 g (c) 4.90 g (d) 9.8 g

Answer 1

Therfore moles of acid => 400/1000 * 0.1 => 4/100 => 0.04 moles.

Weight=  > moles x molar mass => 0.04 x 98 => 3.92 gm.