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adelina 88 [10]
3 years ago
11

What would change oxygen into another isotope

Chemistry
1 answer:
Ainat [17]3 years ago
5 0

Answer:

Adding Neutrons

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Atoms Composition
  • Nucleus - Protons, Neutrons
  • Electrons

Explanation:

We know that adding Protons to any atom will change its chemical properties and make it a different element.

We also know that adding Electrons to any atom will simply only change its overall charge.

Isotopes are formed by adding <em>neutrons</em> to the nucleus. It will be the same element but it would have a different mass and amount of neutrons.

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Answer: 1. 2Al+3CuCl_2\rightarrow 2AlCl_3+3Cu

2. 3 moles of CuCl_2 : 2 moles of Al

3. 0.33 moles of CuCl_2 : 0.92 moles of Al

4. CuCl_2 is the limiting reagent and Al is the excess reagent.

5. Theoretical yield of AlCl_3 is 29.3 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

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\text{Moles of} CuCl_2=\frac{45.0g}{134g/mol}=0.33moles

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According to stoichiometry :

3 moles of CuCl_2 require = 2 moles of Al

Thus 0.33 moles of CuCl_2 will require=\frac{2}{3}\times 0.33=0.22moles  of Al

Thus CuCl_2 is the limiting reagent as it limits the formation of product and Al is the excess reagent.

As 3 moles of CuCl_2 give = 2 moles of AlCl_3

Thus 0.33 moles of CuCl_2 give =\frac{2}{3}\times 0.33=0.22moles  of AlCl_3

Theoretical yield of AlCl_3=moles\times {\text {Molar mass}}=0.22moles\times 133.34g/mol=29.3

Thus 29.3 g of aluminium chloride is formed.

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