what is the molarity of a solution of calcium chloride which contains 33500mg

what is the molarity of a solution of calcium chloride which contains 33500mg of solute in total volume of 0.352L?

2 months ago

Solution 1

Guest Guest #11294
2 months ago
The molarity of a solution of CaCl2 is calculated as below

convert  mm  to g
1mg =0.001 g
what about 33500 mg=? g
33500 x 0.001 =33.5 g
find the  moles of CaCl2 = mass/molar mass

=33.5 g/ 111 g/mol =0.3018 moles

molarity =moles/volume

=0.3018/0.352 =0.857 M

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The chart is missing so there is no way to tell what does the graph show.

Yet, I can help you because I can explain the status of each statement of the choices. As you will see there is only one possibility..

1) Temperature can change the solubility of a solute.

Yes, temperature definetly can, and mostly do, modify the solubility of a solute.

You can search any chart of solubility and will find that.

I can give you two examples:

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Since this is the opposite to the first statement and the first is true, this is false.

3) Salt has a greater solubility than sugar.


This is an empirical result, which you cannot predict theoretically. So you need to see at the data either in a table or in a chart. Else you can test it at home. After the empirical data are shown it results that more grams of sugar can be dissolved in water compared to salt.

That is something you ca see in a chart or you can prove by yourself.

4) Nitrite salt has a greater solubility than sugar.


Looking at some data you can find that sodium nitrite solutiliby is aroun  70 - 100 g/10 g while sugar (sucrose) solutiblity is around 180 - 235 g/ 100 g.

Solution 2


Temperature can change the solubility of a solute.


Got it right on Ed2021

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