89. Solving a chemistry problem
Seller: Derkach
Price: 1.19 USD
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Product description
- 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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