How many molecules and how much of a substance is contained in 15 g of nitric oxide (II)?
| April 24, 2021 | education
Let’s write the formula for nitric oxide (II) and determine its molar mass:
NO, M = 14 + 16 = 30 g.
Avogadro’s number indicates that one mole of a substance contains 6.02 * 10 ^ 23 molecules.
We have 15/30 = 0.5 mol of oxide. Accordingly, in such an amount there are 3.01 * 10 ^ 23 molecules.
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