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1. How many grams of NH3, can we produce when 5.40 g of H2, is reacted with excess N2?

N2 + 3H2(g) → 2 NH3(g)​

2 Answers

4 votes

Answer:

30.26 grams of N is produced when 5.40 g of , is reacted with excess nitrogen gas.

Step-by-step explanation:

User Icn
by
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7 votes

30.26 grams of N
H_(3) is produced when 5.40 g of
H_(2), is reacted with excess nitrogen gas.

Step-by-step explanation:

Data given:

mass of ammonia N
H_(3) = ?

mass of Hydrogen gas = 5.40 grams

Balanced chemical reaction:


N_(2) + 3
H_(2) ⇒2N
H_(3)

Atomic mass of hydrogen = 2.06 gram/mole

atomic mass of nitrogen = 28.006 grams/mole

atomic mass of ammonia = 17 grams/mole

moles of hydrogen provided

number of moles =
(mass)/(atomic mass of 1 mole)

putting the values in the equation:

number of moles=
(5.40)/(2.016)

number of moles = 2.67 moles of hydrogen gas is given

from the chemical reaction:

3 moles of H2 gives 2 moles of NH3

SO, 2.67 moles of H2 will give x moles of NH3


(2)/(3) =
(x)/(2.67)

3x = 5.34

x = 1.78 moles of ammonia

mass of ammonia = number of moles x atomic mass

mass of ammonia = 1.78 x 17

mass of ammonia = 30.26 grams

User Fatso
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