
Concept explainers
(a)
Interpretation: The mass of BaCl2 needs to be determined.
Concept Introduction: The mass can be calculated from number of moles and molar mass as follows:
Here, n is number of moles and M is molar mass.
(a)

Answer to Problem 3RQ
31.24 g
Explanation of Solution
The number of moles is related to mass and molar mass as follows:
Thus,
(b)
Interpretation: The mass of CO2 needs to be determined.
Concept Introduction: The mass can be calculated from number of moles and molar mass as follows:
Here, n is number of moles and M is molar mass.
(b)

Answer to Problem 3RQ
88 g
Explanation of Solution
The given mass can be calculated as follows:
(c)
Interpretation: The mass of HNO3 needs to be determined.
Concept Introduction: The mass can be calculated from number of moles and molar mass as follows:
Here, n is number of moles and M is molar mass.
(c)

Answer to Problem 3RQ
220.5 g.
Explanation of Solution
The number of moles can be calculated as follows:
(d)
Interpretation: The mass of
Concept Introduction: The mass can be calculated from number of moles and molar mass as follows:
Here, n is number of moles and M is molar mass.
(d)

Answer to Problem 3RQ
Explanation of Solution
Putting the values,
The number of moles is related to mass and molar mass as follows:
Chapter 6 Solutions
World of Chemistry
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