Mixtures and Solutions G.21

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AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Mixtures and Solutions G.21

Postby AKatukota » Tue Oct 01, 2019 10:04 pm

How would I start this problem?

A solution is prepared by dissolving 0.500 g of KCl, 0.500 g of K2S, and 0.500 g of K3PO4 in 500. mL of water. What is the concentration in the final solution of (a) potassium ions; (b) sulfide ions?

Brooke Yasuda 2J
Posts: 102
Joined: Sat Jul 20, 2019 12:17 am

Re: Mixtures and Solutions G.21

Postby Brooke Yasuda 2J » Tue Oct 01, 2019 10:11 pm

First you would convert all of the masses of compounds into moles. From there, you would look at the molar ratios of the potassium and sodium ions to their prospective compounds, and calculate the moles of these ions within the solution.

AKatukota
Posts: 100
Joined: Thu Jul 25, 2019 12:18 am

Re: Mixtures and Solutions G.21

Postby AKatukota » Tue Oct 01, 2019 10:25 pm

Great, thank you! And then I would divide by the 0.5L correct? I got .0458M potassium ions and .009M sulfide ions.


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