How Much Dissolved Substance Remains After Boiling?

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SUMMARY

The discussion centers on calculating the amount of dissolved substance remaining after boiling a 200mL solution with a concentration of 1g/L, resulting in a final volume of 136mL. The correct approach involves understanding that boiling reduces the volume of the solution but does not change the amount of dissolved solid. Therefore, the amount of dissolved substance remains constant at 0.2g, as the concentration is not recalculated based on the new volume.

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Homework Statement


A solution 200mL solution has 1g/L of a solid dissolved in it. After boiling, there is only 136mL remaining. How much of the dissolved substance is left?

I figured that if
C1V1=C2V2, then if the concentrations were equal after calculation, i could the concentration after from the concentration before so that
C2=(C1V1)/V2 thus converting the concentration to grams afterwards and subtracted that value from the previous one.
 
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IMHO you are misinterpreting the question. You are not asked about a new concentration, but whether amount of dissolve solid changed.

Did it? What was removed from the solution?
 

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