Question

Consider the chemical equation. 2nbr3 3naoh right arrow. n2 3nabr 3hobr if there are 40 mol of nbr3 and 48 mol of naoh, what is the excess reactant? n2 nbr3 naoh hobr

Answer 1

Following the equation and the stoichiometry of the reaction,  excess reactant.

What is excess reactant?

The excess reactant has to do with that reactant that is present in more amount than is required in the reaction.

In this case, we have the reaction; 2NBr3 + 3NaOH ---> N2 + 3NaBr + 3HOBr.

If 2 moles of NBr3  reacts with 3 moles of NaOH

x moles of NBr3   reacts with 48 moles of NaOH

x = 32 moles

Hence, NBr3 is the excess reactant.

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