How many formula units are in 0.25 mole of Na₂O?

Name: How many formula units are in 0.25 mole of Na 2 O?
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Question

Quizplus · Accepted Answer

To find the number of formula units, we need to use Avogadro's number (6.022 x 10^23) and the molar mass of the compound. The molar mass of Na₂O is approximately 316.7 g/mol. 0.25 mol x 6.022 x 10^23 formula units/mol = 1.5055 x 10^23 formula units. Rounding to two significant figures, we get 1.5 x 10^23 formula units, which matches option C.

How Many Formula Units Are in 0