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Svetradugi [14.3K]
3 years ago
11

What is the molar mass of AlCl3?

Chemistry
1 answer:
miss Akunina [59]3 years ago
8 0

Answer:

133.33 g/mole

Explanation:

To get the molar mass, you will need to first determine the atoms in the compound.

AlCl₃

We have aluminum (Al) and Chlorine (Cl)

Next step is to determine how many atoms of each element you have in the compound. The subscript will tell you how many. If you see no subscript, that means 1 atom.

Al = 1 atom

Cl = 3 atoms

Then you multiply the number of atoms by the atomic weight to get the molar mass of each element and add them up to get the total molar mass of the compound:

Element          # of atoms        atomic weight           molar mass

Al                         1               x     26.98 g/mole =    26.98 g/mole

Cl                         3              x     35.45 g/mole =   <u>106.35 g/mole</u>

                                                             TOTAL =   133.33 g/mole

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