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Ilia_Sergeevich [38]
3 years ago
7

Write the nuclear equation for the beta decay of Aluminum-25.

Chemistry
1 answer:
Brums [2.3K]3 years ago
3 0

We want to write the nuclear equation for the beta decay of Aluminium-25.

The equation is:

^{25}_{13}Al \implies ^{25}_{14}Si +   ^{0}_{-1}e

First, as you may know, in a beta decay the number of protons is increased by one. Aluminium has 13 of them, so after the decay, we will have 14 protons.

This means that the aluminium will transform into silicon, then the nuclear equation is just:

^{25}_{13}Al \implies ^{25}_{14}Si +   ^{0}_{-1}e

Where the:

^{0}_{-1}e

Is an electron, which is the emitted particle in the beta decay.

If you want to learn more, you can read:

brainly.com/question/4184205

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1.09 M

Explanation:

Let's define the equation that will be used to calculate the final concentration of the resultant calcium nitrate solution. In order to calculate it, we need to find the total number of moles of calcium nitrate and divide by the total volume of the resultant solution:

c=\frac{n}{V}

This equation firstly helps us find the number of moles of calcium nitrate. Multiplying molarity by volume will yield the moles. Adding the moles from the first component to the second component will provide us with the total number of moles of calcium nitrate:

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c_{final}=\frac{138.62 mmol}{126.7 mL}= 1.09 M

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