Question

How many moles of NaOH is 20 grams? (molar mass of NaOH is 39.997 g/mol)Show your work for full credit.

Answer 1

In this question, we have to calculate the number of moles of NaOH based on the given mass, 20 grams, and its molar mass, 39.997g/mol, in order to do that, we can do the following calculation:

39.997g = 1 mol of NaOH

20g = x moles of NaOH

39.997x = 20

x = 20/39.997

x = 0.500 moles of NaOH in 20 grams of it