Question

7g iron heated with excess sulphur.what amount of iron sulphide will be produced?

Answer 1

11 gram, see on

Explanation:

1 st of all from the question S is Excess reagent

So calculate value wrt LR

Here Fe is LR => n(no. of mole of Fe) = no. of mole of FeS

=> 7/ 56 = x/ 88. Where x is unknown mass of Fes

So, x =11 gram