Question

The mass in grams of 2 mol of H2SO4 is:

A) 98g/2
B) 2(98g)
C) 196g/2
D) 2(196g)

Answer 1

The correct answer is B) 2 x (98g)

Step-by-step explanation:

We calculate the weight of 1 mol of H2S04, from the atomic weights of each element obtained from the periodic table.

Weight 1 mol H2S04= (Weight H)x2 + Weight S + (Weight 0) x4

Weight 1 mol H2S04= 1 g x 2 + 32g + 16 g x 4= 98 g/mol

1 mol-------------------98 g H2S04

2 mol------------------x= (2 mol x98 g H2S04)/1 mol= 196g