89. Solving a chemistry problem

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89. Solving a chemistry problem

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3. A sample of the alloy weighing 0.7235 was dissolved and a current of 0.180 A was passed through the resulting solution for 22 minutes, as a result of which copper was completely released at the cathode. What is the mass fraction (%) of copper in the alloy if the current efficiency was 80%?

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Category: Chemistry
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