Question

How many moles of sulfur dioxide (SO2) are required to produce 5.0 moles of sulfur (S) according to the following balanced equation? SO2 + 2H2S - 3S + 2H2O​

Answer 1

Answer: 1.7

Explanation:

Answer 2

Answer:

1.67 moles

Explanation:

From the balanced equation of reaction:

                     $SO_2 + 2H_2S -> 3S + 2H_2O$

1 mole of sulfur dioxide, SO2, is required to produce 3 moles of sulfur, S.

If 1 mole SO2 = 3 moles S, then, how many moles of SO2 would be required for 5 moles S?

     Moles of SO2 needed = 5 x 1/3

                   = 5/3 or 1.67 moles

Hence, 1.67 moles of SO2 would be required to produce 5.0 moles of S.