Dinitrogen monoxide or laughing gas (n2o) is used as a dental anesthetic and as an aerosol propellant. how many moles of n2o are present in 12.6 g of the compound? how many molecules of n2o are present in 12.6 g of the compound? [use molar masses: n, 14.01 g/mol, o, 16.00 g/mol]

In 12.6g of there are 0.29 moles of and molecules of

Explanation:

First you should find the molar mass of the :

Then you should write the conversion factor using the molar mass:

So, there are 0.29 moles of in 12.6g of .

Finally to find the number of molecules, you should use the Avogadro´s number:

There are moles of in 12.6g of

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