Question

The molar mass of Ba(OH)2 is
(1) 154.3 g (3) 171.3 g
(2) 155.3 g (4) 308.6 g

Answer 1

Ba(OH)₂ = 137.3 + 16 x 2 + 1 x 2 = 171.3 g

Answer (3)

hope this helps!