We’re being asked to calculate the mass percent when 18.9 g solid is dissolved in 39.5 g water.
We’re given the mass percent of the solution and we're going to use the mass percent formula shown below:
Since we are dealing with a solution, we can rewrite the equation as:
Calculate the mass of mass percent solid:
What is the mass percent of a solution prepared by dissolving 18.9 grams of solid into 39.5 grams of water?
D) The identity of the compound must be known.
E) none of the above
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Mass Percent concept. You can view video lessons to learn Mass Percent. Or if you need more Mass Percent practice, you can also practice Mass Percent practice problems.
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