How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution?
A)0.814
B)75.2
C)15.6
D)0.371
E)none of the above

Name: How many moles of NaF are in 34.2 grams of a 45.5% by mass NaF solution? A)0.814 B)75.2 C)15.6 D)0.371 E)none of the above
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Quizplus · Accepted Answer

To find the moles of NaF, first calculate the mass of NaF in the solution: 34.2 g * 0.455 = 15.561 g NaF. The molar mass of NaF is approximately 42 g/mol. Therefore, moles of NaF = 15.561 g / 42 g/mol = 0.371 moles.

How Many Moles of NaF Are in 34