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Over [174]
3 years ago
10

Calculate the mass (in grams) of cobalt that has the same number of atoms as 521 mg of silicon.

Chemistry
1 answer:
denis23 [38]3 years ago
8 0
The atomic mass of silicon is 28 g/mol.
Therefore, 521 mg or 0.521 g will be equivalent to;
  0.521/28 = 0.01861 mooles
Atomic mass of cobalt is 27 g/mol
According to Avogadro's law the mass of cobalt that will have the same atom as 52 mg of silicon will be ;
(0.01861 moles × 27) = 0.5024 g or 502.4 mg

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Answer:

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Explanation:

To find the chemical formula, first, let's evaluate the given conditions.

1. <u>Is a primary amine</u>:

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2. <u>The degree of unsaturation of the five-membered carbon ring is equal to three</u>:

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3. <u>There are seven carbon atoms</u>:

Five of these seven carbons are for the carbon ring and the other two are bonded to the primary amine.

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I hope it helps you!

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According to the Law of Conservation, all atoms of the reactant(s) must equal the atoms of the product(s).
As a result, we need to balance chemical equations. We do this by adding in coefficients to the reactants and/or products. The compound(s) itself/themselves DOES NOT CHANGE.
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