calculate maximum concentration?

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calculate maximum concentration?

Calculate the maximum concentration of OH- that can exist in a 0.200M Ca(NO3)2 solution. Ksp Ca(OH)2 = 2.8 x 10^-8

where to start...how?
thanks.

2007-05-23 18:08:02 · 1 answers · asked by pubpubpub b 1 in Science & Mathematics ➔ Chemistry

1 answers

If Ca+2 is at 0.2 M, the Ksp of Ca(OH)2 will determine the limit to OH-. The equation is, with substitutions
0.2 * [OH-]^2 = 2x10^-8
and [OH-] = 3.2 x 10^-4.

2007-05-23 18:24:21 · answer #1 · answered by cattbarf 7 · 0⤊ 0⤋