dit View History Bookmarks Window Help Take Te v Question Completion Status: [Cr

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dit View History Bookmarks Window Help Take Te v Question Completion Status: [Cr(H2O)61"(aq) + H2O(l) ICr(H2OS(OH)(a) HO (aq). Which one of the following statements should Jake formulate to accurately describe the acid-base behavior of the Cr3 cation in water? ICr(H:O) donates a protog to a surround to a surrounding HO molecule, resulting in a HÖ ion: this causes the pH of the solution to decrease. ® [Cr(H:0).] donates a pair of electrons to a surrounding H,Ot ion, resulting in a H2O molecule: this causes the pH of the solution to stay constant © [Cr(H20)6?donates a pair of electrons to a surrounding H20 molecule, resulting in a OH ion: this causes the pH of the solution to decrease. 0) [Cr(H20,?donates a proton to a surrounding H20 molecule, resulting in a OH ion: this causes the pH of the solution to increase. [Cr(H2O),?donates a pair of electrons to a surrounding H2O molecule, resulting in a HiO ion: this causes the pH of the solution to increase, F4 FS F6 F7 F8

Explanation / Answer

Option A is correct.

The molecule donates H+ of co ordinated H2O to surrounding H2O to give H3O+ and therefore solution becomes acidic hence pH decreases.

:)

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