in lab buffers solution based onto a 01 m, Chemistry

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in lab buffers solution based onto a 01 m

In lab, buffers solution based onto a 0.1 M solution of sodium phosphate at pH7.0. Within this system, there are three of pK_As like: 12.7, 7.21 and 2.12.

Determine the concentration of hydroxide ion in this buffer?

Ans:

pOH = 14-pH = 14 - 7 = 7

[OH] = 1.0 x 10^-7 M

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