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

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

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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


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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 Formula concept. You can view video lessons to learn Mass Percent Formula. Or if you need more Mass Percent Formula practice, you can also practice Mass Percent Formula practice problems.

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