(a)
Interpretation:
The preparation of the given solutions using pure solute and wateris to be explained.
Concept Introduction:
The number of moles is calculated by the formula,
Answer to Problem 7.42E
Explanation of Solution
The number of moles of
The above formula can be written as follows:
The given volume and molarity is
Substitute the values of volume and molarity in equation (1).
Thus, the number of moles of
The amount of
The molar mass of
Substitute the value of molar mass in the given formula.
Thus, the amount of
Hence,
(b)
Interpretation:
The preparation of the given solutions using pure solute and water is to be explained.
Concept Introduction:
The number of moles is calculated by the formula,
Answer to Problem 7.42E
Explanation of Solution
The number of moles of
The above formula can be written as follows:
The given volume and molarity is
Substitute the volume and molarity in equation (1).
Thus, the number of moles of
The amount of
The molar mass of
Substitute the value of molar mass in the given formula.
Thus, the amount of
Hence,
(c)
Interpretation:
The preparation of the given solutions using pure solute and water is to be explained.
Concept Introduction:
The concentration of the solution in
Answer to Problem 7.42E
Explanation of Solution
The concentration of the solution in
The given value of
Substitute the value of
Hence, the mass of solute is
Mass of solvent is calculated as follows:
Substitute the mass of solute and solution in above formula.
Thus, the mass of solvent (water) is
Therefore,
(d)
Interpretation:
The preparation of the given solutions using pure solute and water is to be explained.
Concept Introduction:
The concentration of the solution in
Answer to Problem 7.42E
Explanation of Solution
The concentration of the solution in
The given value of
Substitute the value of
Hence,
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Chapter 7 Solutions
Chemistry for Today: General, Organic, and Biochemistry
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