Concept explainers
(a)
Interpretation:
From the given trials of reactants, a trial that contains Stoichiometric amounts of the reactants has to be determined.
(a)
Explanation of Solution
Given,
Trial | A | B | C | D | E |
Excess | Yes | Yes | Yes | No | No |
Excess | No | No | No | No | Yes |
By observing the given trails, Trial D has no excess reactants present in stoichiometric amounts of reactants.
Assume the volumes are measured with at least graduated cylinders, giving them one decimal place.
(b)
Interpretation:
Number of moles of
Concept introduction:
Number of moles is calculated as follows,
(b)
Explanation of Solution
Given,
Trial | A | B | C | D | E |
Excess | Yes | Yes | Yes | No | No |
Excess | No | No | No | No | Yes |
Number of moles of
Number of moles is calculated.
(c)
Interpretation:
Number of moles of
Concept introduction:
Refer to part (b)
(c)
Explanation of Solution
Given,
Trial | A | B | C | D | E |
Excess | Yes | Yes | Yes | No | No |
Excess | No | No | No | No | Yes |
Number of moles of
Number of moles is calculated.
(d)
Interpretation:
The whole number ratio of
Concept introduction:
Refer to part (b)
(d)
Explanation of Solution
Given,
Trial | A | B | C | D | E |
Excess | Yes | Yes | Yes | No | No |
Excess | No | No | No | No | Yes |
Number of moles of
Number of moles of
The whole number ratio of
The determination of mole ratio is =
Dividing by 4,
The determination of mole ratio is =
The whole number ratio of
(d)
Interpretation:
The chemical formula of the product has to be determined.
(d)
Explanation of Solution
The whole number ratio of
According to the ratio calculation, x is
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Chapter 3 Solutions
Chemistry: The Molecular Science
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