First, find how many copper atoms make up the ball:
<span>moles of atoms = (46.6 g) / (63.5 g per mol of atoms) = 0.73385 mol </span>
<span># of atoms = (0.73385 mol) (6.02 × 10^23 atoms per mol) = 4.4178 × 10^23 atoms </span>
<span>There is normally one electron for every proton in copper. This means there are normally 29 electrons per atom: </span>
<span>normal # electrons = (4.4178 × 10^23 atoms) (29 electrons per atom) = 1.2811 × 10^25 electrons </span>
<span>Currently, the charge in the ball is 2.5 µC, which means -2.5 µC worth of electrons have been removed. </span>
<span># removed electrons = (-2.5 µC) / (1.602 × 10^-13 µC per electron) = 1.5604 × 10^13 electrons removed </span>
<span># removed electrons / normal # electrons = </span>
<span>(1.5604 × 10^13 electrons removed) / (1.2811 × 10^25 electrons) = 1.22 × 10^-12 </span>
<span>That's 1 / 1.22 × 10^12 </span>
The answer is 4 mol HCl. See my worked solution attached.
We can convert ketones to alkenes by the use of;
1)B2H6 in THF
2) H2O2/NaOH
<h3>What is a ketone?</h3>
A ketone is a compound of the sort RCO. The compound contains a carbon - oxygen double bond. The ketone can be used in the synthesis of an alkene. The question is incomplete hence I can only give a general answer.
The reaction involves the following reagents;
1)B2H6 in THF
2) H2O2/NaOH
When these two reagents are applied any ketone can be converted to an alkene.
Learn more about ketone: brainly.com/question/4439718