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sertanlavr [38]

2 years ago

15

An atom of an element contains 9 protons. Which element is it?

1 answer:

lina2011 [118]2 years ago

3 0

Fluorine

Explanation:

By looking at the periodic table, you will see that Fluorine has 9 protons. Since the number of electrons equal the number of protons, Fluorine has 9 electrons as well. Meanwhile, it's mass number of 19, minus 10 neutrons, gives you 9 protons or electrons. Hence, the atom would be Fluorine.

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C2d3 has a solubility product constant of 9.14×10−9. What is the molar solubility of c2d3?

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Answer : The molar solubility of $C_2d_3$ is $9.67\times 10^{-3}M$

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The solubility equilibrium reaction will be:

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Therefore, the molar solubility of $C_2d_3$ is $9.67\times 10^{-3}M$

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