Title: If an aqueous solution is prepared by dissolving 1.6 mol Na2CrO4 in 1.0 L of a buffer at pH 8.24, ...
Post by: jag on Jun 27, 2021
If an aqueous solution is prepared by dissolving 1.6 mol Na2CrO4 in 1.0 L of a buffer at pH 8.24, what will be [Cr2O72-] in the solution? The resultant equilibria are:
HCrO4-(aq)
H+(aq) + CrO42-(aq) Ka = 3.2 × 10-7
2 HCrO4-(aq) Cr2O72-(aq)+ H2O(l) K = 33
▸ 9.9 × 10-5 M
▸ 2.9 × 10-28 M
▸ 8.9 × 10-9 M
▸ 8.6 × 102 M
▸ 2.8 × 10-2 M
HCrO4-(aq)
H+(aq) + CrO42-(aq) Ka = 3.2 × 10-72 HCrO4-(aq)
Cr2O72-(aq)+ H2O(l) K = 33 ▸ 9.9 × 10-5 M
▸ 2.9 × 10-28 M
▸ 8.9 × 10-9 M
▸ 8.6 × 102 M
▸ 2.8 × 10-2 M
Title: If an aqueous solution is prepared by dissolving 1.6 mol Na2CrO4 in 1.0 L of a buffer at pH 8.24, ...
Post by: Hellish Lover on Jun 27, 2021
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