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# How Many Moles Of N Are In 0.171 G Of N2O? How Many Moles Of N Are In 0

So yet again, we find ourselves doing math when we thought the class was chemistry! For this we”re going to do a standard conversion that we do a lot in GenChem, converting from grams to moles.

You are watching: How many moles of n are in 0.171 g of n2o?

In this case, we”re starting with 0.205g N2O. Let”s go ahead and convert that to moles by using the molar mass, which is 44.013 g/mol.

.205 g N2O * (1 mol N2O / 44.013 g N2O) = 0.00466 mol N2O

So we got to moles of dinitrogen monoxide – now we need to know how many moles of nitrogen! We see that there”s a subscript of 2 after the N, meaning there are two moles of N for every mol of N2O. You can think of it in terms of food — for every 1 sandwich, there are two pieces of bread.

So let”s multiply the number of moles of N2O by 2, to get moles of N!

.00466 mol N2O * ( 2 mol N / 1 mol N2O) = .00932 mol N!

Hope that helps 🙂

-Niral

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Bri S.

i got that answer too! thanks :)))
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