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Free_Kalibri [48]
3 years ago
15

For a1, its atomic number is 13 and its mass number is 27 how many neutrons does it have?

Chemistry
1 answer:
NeX [460]3 years ago
8 0

14 is the correct answer

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A chemist prepares a solution of mercury(I) chloride Hg2Cl2 by measuring out
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Answer:

1.26 × 10^-8 M

Explanation:

We are given;

Number of moles of mercury (i) chloride as 0.000126 μmol

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We need to know that;

Concentration is also known as molarity is given by;

Molarity = Number of moles ÷ Volume

Number of moles = 1.26 × 10^-10 Moles

Volume = 0.01 L

Therefore;

Concentration = 1.26 × 10^-10 Moles ÷ 0.01 L

                       = 1.26 × 10^-8 M

Thus, the molarity of the solution is 1.26 × 10^-8 M

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Explanation:

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