Problem: How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?

FREE Expert Solution
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FREE Expert Solution

Step 1

% mass = mass solutemass solution×100% mass100= mass solutemass solutionmass solute = (mass solution)(% mass100)mass NaF = (34.2 g)(45.5100)mass NaF = (34.2 g)(0.455)

mass NaF = 15.561 g


81% (156 ratings)
Problem Details

How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?

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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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Based on our data, we think this problem is relevant for Professor Kobko-Litskevitch's class at HUNTER.