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KiRa [710]
3 years ago
10

what is the position of an element in the periodic table if its electrons configuration is 1s2 2s2 2p6 3s2 3p5?

Chemistry
1 answer:
castortr0y [4]3 years ago
3 0

It is a group 7A element

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Calculate the silver ion concentration in a saturated solution of silver(i) sulfate (ksp = 1.4 × 10–5).
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Answer:

= 0.030 M

Explanation:

We can take x to be the concentration in mol/L of Ag2SO4 that dissolves  

Therefore;  concentration of  Ag+ is 2x mol/L and that of SO4^2- x mol/L.

Ksp = 1.4 x 10^-5

Ksp = [Ag+]^2 [SO42-]

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Thus;

4x^3  = 1.4 x 10^-5

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molar solubility = 0.015 M

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