Question

Consider the reaction of sulfur dioxide and water, which is represented by the following equation: 2SO2(g) + 2H2O(g) → 2H2S(g) + 3O2(g) How many moles of electrons are transferred according to the equation that is written?

Answer 1

Answer:

6 moles of electrons are transfered

Explanation:

The actual redox is

S4+ +6e- long arrow S2- + 3O2

From the reaction, addition of 6 electrons on the LHS is needed to balance the electron number, hence 6 moles of electrons are transfered