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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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jag jag
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3 years ago
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
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
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Hellish L.Hellish L.
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3 years ago
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jag Author
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3 years ago
This calls for a celebration Person Raising Both Hands in Celebration
yen
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Good timing, thanks!
prime7105
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Helped a lot
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