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Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there. You can also find the Exam Thread list for A-levels here and GCSE here.
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Original post by Cadherin
Hi,
Can you please tell me if dilute hydroxide ions act as a base or as a ligand when, for example:
[Cr(H2O)6]3+ + 3OH- ------> [Cr(H2O)3(OH)3] + 3H2O
Can you also explain why? Thanks!
Can you please tell me if dilute hydroxide ions act as a base or as a ligand when, for example:
[Cr(H2O)6]3+ + 3OH- ------> [Cr(H2O)3(OH)3] + 3H2O
Can you also explain why? Thanks!
base, because the chromium is already six coordinate. The hydroxide ions in solution simply abstract protons from the attached water ligands, which have a weakened O-H bond due to the high charge density of the 3+ metal ion.
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