Concept explainers
To Find: The amount of the 30% of the copper sulphate that the student use.
Answer to Problem 57STP
The correct option is G.
Explanation of Solution
Given:
The student mixed 30% of the copper sulphate with some 40% of the copper sulphate to obtain the 100 mL of the 32% of the copper sulphate solution.
Calculation:
Consider
Substitute the first equation in the second as,
Then, the value of
Thus, the correct option is G.
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