Aluminum oxide contains 53% of Al. How much oxygen combines with 26.5g of aluminium to form aluminium oxide?

Thank you

Let x = mass

Al2O3, then
0.53*x = 26.5
x = ? = mass Al2O3 and
?-mass Al = mass O.

I get 50 g for mass Al2O3 and 23.5 = mass O2.

To find out how much oxygen combines with 26.5g of aluminum to form aluminum oxide, we can use the concept of stoichiometry.

1. First, we need to determine the molar mass of aluminum (Al) and aluminum oxide (Al2O3).
- The molar mass of Al = 26.98 g/mol
- The molar mass of Al2O3 = (2 x Al) + (3 x O) = (2 x 26.98 g/mol) + (3 x 16.00 g/mol) = 101.96 g/mol

2. Next, we calculate the number of moles of Al in 26.5g:
- Moles of Al = Mass of Al / Molar mass of Al
- Moles of Al = 26.5 g / 26.98 g/mol = 0.98 mol

3. As stated in the problem, aluminum oxide (Al2O3) contains 53% Al. Therefore, the remaining mass (47%) must be oxygen (O).
- Mass of Al2O3 = Mass of Al + Mass of O
- Mass of O = Mass of Al2O3 - Mass of Al = (47/100) x Mass of Al2O3

4. Substitute the values into the equation:
- Mass of O = (47/100) x Mass of Al2O3
- Mass of O = (47/100) x (101.96 g/mol) = 47.9112 g

So, 26.5g of aluminum will combine with 47.9112g of oxygen to form aluminum oxide.

To determine how much oxygen combines with 26.5g of aluminum to form aluminum oxide, we first need to calculate the amount of aluminum present.

1. Calculate the mass of aluminum:
Given that aluminum oxide contains 53% aluminum, we can find the mass of aluminum in aluminum oxide as follows:

Mass of aluminum = 53% of mass of aluminum oxide
= (53/100) * mass of aluminum oxide

Since the mass of aluminum and aluminum oxide are proportional, we can use this ratio to calculate the mass of aluminum:

Mass of aluminum = (53/100) * mass of aluminum oxide

2. Substitute the given values:
We are given that the mass of aluminum is 26.5g and we need to find the mass of oxygen in aluminum oxide.

26.5g = (53/100) * mass of aluminum oxide

3. Solve for mass of aluminum oxide:
To find the mass of aluminum oxide, we can rearrange the equation:

mass of aluminum oxide = (26.5g * 100) / 53

mass of aluminum oxide = 50g

4. Calculate the mass of oxygen:
Now, we can determine the mass of oxygen in aluminum oxide by subtracting the mass of aluminum from the mass of aluminum oxide:

mass of oxygen = mass of aluminum oxide - mass of aluminum
= 50g - 26.5g
= 23.5g

Therefore, 23.5g of oxygen combines with 26.5g of aluminum to form aluminum oxide.