# MgI2 (Magnesium iodide) Molar Mass (With Calculations)

Molar mass of MgI2 (Magnesium iodide) is 278.105 g/mol.

Well, now you have come to know the molar mass of MgI2.

But how can you get this value?

Let me show you the calculation to get the molar mass of MgI2 (Magnesium iodide).

If you are a visual learner like me, then here is a short one minute video for you.

## MgI2 (Magnesium iodide) Molar Mass Calculation

If you have a periodic table with you, then you can easily calculate the molar mass of MgI2 (Magnesium iodide).

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 MgI2 (Magnesium iodide).

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 MgI2, there is 1 Magnesium atom and 2 Iodine atoms.

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

You can see that;

The molar mass of Magnesium is 24.305 g/mol. [1]

The molar mass of Iodine is 126.90 g/mol. [2]

Now, to calculate the molar mass of MgI2, you just have to add the molar mass of all the individual atoms that are present in MgI2.

You can see that in MgI2, there is 1 Magnesium atom and 2 Iodine atoms.

So, Molar mass of MgI2 = Molar mass of 1 Magnesium (Mg) atom + Molar mass of 2 Iodine (I) atoms.
= 24.305 + (126.90) 2
= 24.305 + 253.8
= 278.105 g/mol

Hence the Molar mass of MgI2 is 278.105 g/mol.

I hope you have understood the short and simple calculation for finding the molar mass of MgI2.

Remember

• 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;
Hg2Cl2 Molar Mass
CaSO4 · 2H2O Molar Mass
K2HPO4 Molar Mass
CoSO4 Molar Mass
Pyridine (C5H5N) Molar Mass

Author
##### Jay Rana

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.