Use of amount of substance in relation to masses of pure substances

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Question 22

Medium

A team of researchers investigated the electroplating of copper onto a steel cathode from a copper(II) sulfate solution. They recorded the mass of copper deposited at the cathode over time using three different electrical currents: $A0.8\text{ A}$ , $A1.6\text{ A}$ , and $A2.4\text{ A}$ . The results were plotted on the graph below:

Electroplating of Copper Graph

Determine the number of atoms of copper deposited when the solution is electroplated for $minutes40\text{ minutes}$ at a current of $A1.6\text{ A}$ .

Give your answer to $3$ significant figures.

Relative atomic mass ( $A_r$ ): $Cu=63.5\text{Cu} = 63.5$

The Avogadro constant = $6.02 \times 10^{23}$ per mole.

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Use of amount of substance in relation to masses of pure substances

Question 22

Use of amount of substance in relation to masses of pure substances Questions

Use of amount of substance in relation to masses of pure substances

Question 22

Use of amount of substance in relation to masses of pure substances Questions