
Concept explainers
Interpretation:
The mass of ammonia is to be calculated with given mass of nitric acid.
Concept introduction:
The number of moles is defined as the ratio of mass to the molar mass:
Here,
Molar mass is calculated by adding the masses of each element multiplied by the number of atoms present (given in subscript). Its S.I. unit is
The mass of compound can be calculated as:
Here,
The relationship between pounds and grams can be expressed as
To convert pounds to grams, conversion factor is

Answer to Problem 140AP
Solution:
Explanation of Solution
Given information:
The formation of
The reaction for formation of
The reaction for formation of
The reaction for formation of
The mass of
In one ton, there are
In one pound, there are
Convert pound to gram:
So, the mass of
The molar mass of
Calculate the number of moles of
Substitute
Now, in the reaction for formation of
So, the number of moles of
Substitute
In the reaction for formation of
So, the number of moles of
Substitute
Similarly, in the reaction for formation of
So, the number of moles of
Substitute
The molar mass of ammonia is
So, the mass of
Substitute
The mass of ammonia required is
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Chapter 3 Solutions
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