
Concept explainers
(a)
Interpretation:
The number of moles of second reactant that would be required to react completely with exactly 25.0 g of the first reactant needs to be determined.
Concept Introduction:
From the balanced equation, moles of second reactant needed to react with 25g of first reactant are calculated.
(a)

Answer to Problem 16A
Moles of CuCl2required = 1.041moles
Explanation of Solution
Mass of first reactant = 25.0 g
Molar mass of Mg = 24.0 g/mol
Since the
Hence, moles of CuCl2required = 1.041moles
(b)
Interpretation:
The number of moles of the second reactant that would be required to react completely with exactly 25.0 g of the first reactant needs to be determined.
Concept Introduction:
From the balanced equation, moles of the second reactant needed to react with 25g of the first reactant are calculated.
(b)

Answer to Problem 16A
0.147 moles of AgNO3 will require= 0.735moles
Explanation of Solution
(c)
Interpretation:
The number of moles of the second reactant that would be required to react completely with exactly 25.0 g of the first reactant needs to be determined.
Concept Introduction:
From the balanced equation, moles of the second reactant needed to react with 25g of the first reactant is calculated.
(c)

Answer to Problem 16A
0.24 moles of NaHSO3require 0.24 moles of NaOH.
Explanation of Solution
1 mole of NaHSO3 requires 1 mole of NaOH.
Hence, 0.24 moles of NaHSO3 require 0.24 moles of NaOH.
(d)
Interpretation:
The number of moles of the second reactant that would be required to react completely with exactly 25.0 g of the first reactant needs to be determined.
Concept Introduction:
From the balanced equation, moles of the second reactant needed to react with 25g of the first reactant is calculated.
(d)

Answer to Problem 16A
0.25 mole requires 0.25 mole of HCl.
Explanation of Solution
1 mole of KHCO3 requires 1 mole of HCl.
Hence, 0.25 mole requires 0.25 mole of HCl.
Chapter 9 Solutions
World of Chemistry, 3rd edition
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