homework problem E23

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Vanessa Reyes_1K
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

homework problem E23

Postby Vanessa Reyes_1K » Sat Oct 06, 2018 7:05 pm

For problem E23c) 6th edition, the problem asks to calculate the unknown amounts in moles and later asks to find the amount of F in ions. Which should we be looking for?

Brian Cook
Posts: 34
Joined: Fri Sep 28, 2018 12:15 am

Re: homework problem E23

Postby Brian Cook » Sat Oct 06, 2018 7:10 pm

Hi, I believe it is asking for the number of F- ions in moles, they textbook may have just stated the question in a confusing way. Hope this helps :)

Nicole Elhosni 2I
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: homework problem E23

Postby Nicole Elhosni 2I » Sun Oct 07, 2018 2:51 pm

For that question, you have to convert 25.2 kg of UF6 (subscript) to grams to moles. And then because it is asking for the amount of moles of F- ions, you multiple the amount you just calculated by 6 because there are 6 F- ions in this compound. Since it is asking for moles of ions, we do not need to multiply by Avogadro's number. But if it was asking for just number of ions, we would.


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