Question

A 68.4-g sample of potassium chloride was added to 200.0 g of water at 20 ºC

A 68.4-g sample of potassium chloride was added to 200.0 g of water at 20 ºC. Is the solution saturated, unsaturated, or supersaturated?


Use the graph to help answer the question

Substance Solubility Substance Solubili
Barium-
Hydroxide 3.89 Potassium-
Chloride 34.2
Barium-
Nitrate 9.02 Sodium-
Chloride 35.9
Calcium-
Hydroxide 0.173 Sucrose 203.9


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Answer #1
A sample of barium nitrate is placed into a jar containing water. The mass of the barium nitrate sample is 27 g. Assume the water is at 20 ºC and that the resulting barium nitrate solution is saturated. What mass of water is present in the jar? Use Figure 8-2 to answer this question. Show your work. (2 points) Sorry this is the second part of the question!

Thank you so much!
answered by: beebop
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Answer #2
first question. I need your graph, however I see the solubility for KCl as 34g/100gwater, and so you could put in 200g of water up to 68gKCl. That is close to saturated.

Second question. If saturated, then there are 9gBa(NO3)2 per 100 grams of water, but here, you have put in 27g barium nitrate, so you must have 300g water.
answered by: samamtha
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