Test 1 Q2

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Test 1 Q2

Postby Natalie_Martinez_1I » Sun Apr 22, 2018 7:38 pm

Can someone explain how they got #2 on the test?

Jennifer Tuell 1B
Posts: 34
Joined: Fri Apr 06, 2018 11:05 am

Re: Test 1 Q2

Postby Jennifer Tuell 1B » Sun Apr 22, 2018 9:25 pm

I was also confused by this question!! I'm pretty sure we were given for information than we needed in the question and some numbers didn't need to be used.

Jacy Black 1C
Posts: 30
Joined: Fri Apr 06, 2018 11:01 am

Re: Test 1 Q2

Postby Jacy Black 1C » Sun Apr 22, 2018 11:16 pm

I also was confused on this question. Essentially the question states that a 50.ml solution of 0.1 M AlCl3 had .015g of aluminum deposited on the surface, asking for the concentration of aluminum ions in the electrolyte. I am confused as to the context of the question, as it mentions electroplating metals. I started by converting the .015g Al into moles, and then tried to divide the moles by the .05L to find the concentration of ions. I'm confused as to why I got the question wrong, and if anyone could explain? I think the confusing context contributed to a lack of understanding about what the question was asking.

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