In the reaction mgcl2+2koh mg(oh)2 +2kci if 1 mole mgcl2 is added to 3 moles koh what is the limiting reagent

Explanation:

According to stoichiometry,

1 mole of reacts with 2 moles of

Thus when 1 mole of is added to 3 moles of , (3-2)moles= 1 mole of will remain unused.

Thus is the limiting reagent as it decides the formation of products.

is excess reagent as it remains unused.