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Phil
Phil asked in Science & MathematicsChemistry · 9 years ago

How to find ionic concentration?

Test tomorrow: And I have NO idea how to find the ionic concentration of a substance.

Example problem:

Which of the following aqueous solutions has the greatest total concentration of ions present?

a) 0.01M HCl

b) 0.05M CaBr2

c) 0.02M Ca(NO3)2

d) 0.02M Al(NO3)2

I know the correct answer is b, however I have NO idea how to get it...

1 Answer

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  • steve_geo1
    Lv 7
    9 years ago
    Favorite Answer

    CaBr2 ===> Ca2+ + 2Br- (three ions)

    b) 0.05M x 3 = 0.15M totalo ions

    Try that with a), c), and d) and see that concentrations are less.

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