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IRISSAK [1]
3 years ago
12

if you have 3.50 moles of hydrogen and 5.00moles of nitrogen to produce ammonia, witch element is the reactant in excess? 3H2+N2

=2NH3
Chemistry
2 answers:
hram777 [196]3 years ago
8 0
Nitrogen is the N and that is what is the element is the reactant in excess.
Aloiza [94]3 years ago
8 0

Answer : The N_2 element is the reactant in excess.

Solution :  Given,

Moles of N_2 = 5 moles

Moles of H_2 = 3.50 moles

The balanced chemical reaction is,

3H_2(g)+N_2(g)\rightarrow 2NH_3(g)

From the balanced reaction we conclude that

As, 3 moles of H_2 react with 1 mole of N_2

So, 3.5 moles of H_2 react with \frac{3.5}{3}=1.16 moles of N_2

The excess of N_2 = 5 - 1.16 = 3.84 moles

That means in the given balanced reaction, H_2 is a limiting reagent because it limits the formation of products and N_2 is an excess reagent.

Hence, the N_2 element is the reactant in excess.

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