###### Asked in Chemistry

Chemistry

# What is the mass formula for aluminum?

## Answer

###### Wiki User

###### December 25, 2014 2:37PM

The formula mass of Al (molar mass) is 26.98 g/mol (standard atomic mass atomic 26.9815385 a.m.u.)

## Related Questions

###### Asked in Elements and Compounds

### How many grams of aluminum chloride are produced when 18 grams of aluminum are reacted with an excess of hydrochloride acid?

The empirical formula for aluminum chloride is AlCl3, and its
gram formula mass is 133.34. The formula shows that each formula
unit contains one aluminum atom, and the the gram atomic mass of
aluminum is 26.9815. Therefore, 18(133.34/26.9815) or 89 grams, to
the justified number of significant digits, of aluminum chloride
will be produced.

###### Asked in Chemistry, Elements and Compounds, Atoms and Atomic Structure

### How many moles does aluminum have?

Ok, this question is not complete. you would need to have a mass
of aluminum to find the number of moles. Let me give you an example
using 189 grams of aluminum:
How many moles does 189 grams of aluminum have?
the formula mass of aluminum is 27 so
27 grams of aluminum is the mass of 1 mole
189 grams of aluminum is the mass of (1/27 x 189)=7 moles

###### Asked in Chemistry

### Calculate the number of aluminum ions present in 0.051g of aluminum oxide?

Steps to take:
Write the chemical formula : Al2O3
Calculate the number of moles for aluminum oxide. You should
know the formula which is the mass given (0.051g) divided by the
Mass of aluminum oxide.
Since there is '2' moles of Aluminium you multiplly the number
of moles calculated for aluminum oxide by 2.
Then you have calculated the number of Ions.

###### Asked in Elements and Compounds

### What is the mass of 9.871023 formula units of aluminum oxide?

Assuming that the number "9.871023" would or should have been
written as "9.87 X 1023" if the typographical resources to do so
were available to the questioner:
Avogadro's Number, which is the number of formula units in a
mole of any material, is about 6.022 X 1023. The gram formula mass
for aluminum oxide is 101.96. Therefore, the mass of the stated
number of formula units of aluminum oxide is:
101.96(9.87/6.022) or about 164 grams, to the justified number
of significant digits.