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vlada-n [284]
3 years ago
9

Consider the equation below. N2 + 3H2 -> 2NH3 What is the mole ratio of hydrogen to ammonia?

Chemistry
2 answers:
kumpel [21]3 years ago
7 0

Answer:

3:2

Explanation:

Crank3 years ago
4 0

The answer is: C. 3 : 2.

Balanced chemical reaction: 3H₂ + N₂ → 2NH₃.

From chemical reaction: n(H₂) : n(NH₃) = 3 : 2.

Coefficients with the lowest ratio indicate the relative amounts of substances in a reaction.

Coefficient in fron of hydrogen is 3 and coefficient in fron ammonia is 2.

Coefficients are important to prove the law of conservation of mass.

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6 0
3 years ago
Read 2 more answers
in example 5.11 of the text the molar volume of n2 at STP is given as 22.42 L/mol how is this number calculatd how does the mola
Valentin [98]

Answer:

V = 22.42 L/mol

N₂ and H₂ Same molar Volume at STP

Explanation:

Data Given:

molar volume of N₂ at STP = 22.42 L/mol

Calculation of molar volume of N₂ at STP  = ?

Comparison of molar volume of H₂ and N₂ = ?

Solution:

Molar Volume of Gas:

The volume occupied by 1 mole of any gas at standard temperature and pressure and it is always equal to 22.42 L/ mol

Molar volume can be calculated by using ideal gas formula  

                               PV = nRT

Rearrange the equation for Volume

                            V = nRT / P . . . . . . . . . (1)

where

P = pressure

V = Volume

T= Temperature

n = Number of moles

R = ideal gas constant

Standard values

P = 1 atm

T = 273 K

n = 1 mole

R = 0.08206 L.atm / mol. K

Now put the value in formula (1) to calculate volume for 1 mole of N₂

                   V = 1 x 273 K x 0.08206 L.atm / mol. K / 1 atm

                   V = 22.42 L/mol

Now if we look for the above calculation it will be the same for H₂ or any gas. so if we compare the molar volume of 1 mole N₂ and H₂ it will be the same at STP.

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Answer:

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