Question

2.0 grams of ZnSO4 reacts completely with Li2CO3; how many grams of Li2SO4 would be produced?

Answer 1

1.362 grams

Explanation:

Thebalanced equation for the above reaction is:

`ZnSO_4 + Li_2Co_3 = ZnCo_3 + Li2SO_4`

What is known as a double replacement.

Basically 1 mole reacts with 1 mole of te other and produces 1 mole ofeach by-product.

Molar mass of `ZnSO_4 = 161.44`grams/mole
So 2 gm will be 0.01239 moles.

So the reaction produces 0.01239 moles. of `Li2SO_4`

Molar mass of `Li2SO_4 = 109.95` grams/mole

So you have : 0.01239 moles. x 109.95grams/mole = 1.362 grams.