HW problem G5

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Mallika Singh 1G
Posts: 99
Joined: Sat Aug 24, 2019 12:16 am

HW problem G5

Postby Mallika Singh 1G » Sun Oct 06, 2019 9:28 pm

n = cv is the equation we eventually use to solve for the answer right?

Natalie Alidio 1F
Posts: 5
Joined: Wed Sep 11, 2019 12:16 am

Re: HW problem G5

Postby Natalie Alidio 1F » Sun Oct 06, 2019 9:30 pm

For molarity questions, you would use M(molarity)=n( number of moles)/V(volume)

Matthew Chan 1B
Posts: 111
Joined: Sat Sep 07, 2019 12:16 am

Re: HW problem G5

Postby Matthew Chan 1B » Tue Oct 08, 2019 12:02 am

The equation that we normally use is , which n being the number of moles and v being the volume in liters. However, for this problem, with the way that I solved it, I had to manipulate the equation so that I could solve for the volume, which caused the equation to end up looking like: . Hope this helps!

Sofia Barker 2C
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Re: HW problem G5

Postby Sofia Barker 2C » Wed Oct 09, 2019 12:12 am

You will want to use the equation M = n/v and manipulate it so that M initial = M final, so the equation would then look like n (initial) / v (initial) = n (final) / v (final). This will be helpful for the last step of part A of the problem when you are solving for the final volume after having calculated the initial molarity of Na+.

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