6th edition 12.69

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Jane Burgan 1C
Posts: 73
Joined: Fri Sep 28, 2018 12:15 am

6th edition 12.69

Postby Jane Burgan 1C » Mon Jan 21, 2019 9:55 am

The question asks us to calculate the pH of a .055 M solution of AlCl3(aq). The solutions manual shows the equation to be Al(H20)6 + H20 -- H30 + Al(H20)5OH
How do we know to use Al instead of Cl and to combine Al with H2O?

Jesse Kuehn 1B
Posts: 40
Joined: Wed Nov 14, 2018 12:23 am

Re: 6th edition 12.69

Postby Jesse Kuehn 1B » Mon Jan 21, 2019 1:03 pm

I asked some of the UAs this same question yesterday and they weren't very sure why either so we shouldn't be expected to know why that happens. If we were asked that type of problem, an equation for the reaction would also be given to us

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