Nitrate ion Molar Mass (With Calculations)

Nitrate ion Molar Mass

Molar mass of Nitrate (NO3) ion is 62.004 g/mol.

Well, now you have come to know the molar mass of (NO3) ion.

But how can you get this value?

Let me show you the calculation to get the molar mass of (NO3) ion (Nitrate ion).

You can also refer to this one minute video which will show you the simple steps to calculate the molar mass of any compounds.

Nitrate (NO3) ion Molar Mass Calculation

If you have a periodic table with you, then you can easily calculate the molar mass of (NO3) ion (Nitrate ion).

Because the molar mass of any molecule (or compound) can be calculated by simply adding the molar masses of individual atoms.

Now here we have to find the molar mass of (NO3) ion (Nitrate ion).

So for that, have a look at the periodic table given below.

You can see the molar mass value of all the atoms from this periodic table.

Now in (NO3) ion, there is 1 Nitrogen atom and 3 Oxygen atoms.

So let’s look at the molar mass of Nitrogen and Oxygen from the above periodic table.

You can see that;

The molar mass of Nitrogen is 14.007 g/mol. [1]

The molar mass of Oxygen is 15.999 g/mol. [2]

Now, to calculate the molar mass of (NO3) ion, you just have to add the molar mass of all the individual atoms that are present in (NO3) ion.

You can see that in (NO3) ion, there is 1 Nitrogen atom and 3 Oxygen atoms.

So, Molar mass of (NO3) ion = Molar mass of 1 Nitrogen (N) atom + Molar mass of 3 Oxygen (O) atoms.
= 14.007 + (15.999) 3
= 14.007 + 47.997
= 62.004 g/mol

Hence the Molar mass of (NO3) ion is 62.004 g/mol.

I hope you have understood the short and simple calculation for finding the molar mass of (NO3) ion.


  • In some books, you may see the unit of molar mass as grams/mole or g/mole. But all these units (i.e g/mol, grams/mole and g/mole) are the same. 
  • Always follow the calculation order to avoid any mistakes in calculation. First solve the brackets, then multiplications and at last do the final addition.
  • And don’t forget to put the unit g/mol to your final calculated molar mass.

Check out other related topics for more practice;
PH3 (Phosphine) Molar Mass
LiF (Lithium fluoride) Molar Mass
LiBr (Lithium bromide) Molar Mass
BaCO3 (Barium carbonate) Molar Mass
NaH2PO4 Molar Mass


Jay is an educator and has helped more than 100,000 students in their studies by providing simple and easy explanations on different science-related topics. With a desire to make learning accessible for everyone, he founded Knords Learning, an online learning platform that provides students with easily understandable explanations.

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