contestada

Aluminum reacts with oxygen to produce aluminum oxide. A sample of aluminum
oxide contains of 48.00 g of oxygen and 53.96 g of aluminum. Use the given data to
select
the correct formula for aluminum oxide.
a) AIO
b) Al20
c) Al2O3
d) AIO2

Respuesta :

Madhusudan97

Answer:

To determine the correct formula for aluminum oxide, we need to use the given masses of aluminum and oxygen to find the ratio of their masses.

1. First, let's find the molar masses of aluminum (Al) and oxygen (O):

- Aluminum (Al): 53.96 g/mol

- Oxygen (O): 48.00 g/mol

2. Next, let's find the moles of aluminum and oxygen present in the sample:

- Moles of aluminum = mass of aluminum / molar mass of aluminum = 53.96 g / 26.98 g/mol ≈ 2 moles

- Moles of oxygen = mass of oxygen / molar mass of oxygen = 48.00 g / 16.00 g/mol = 3 moles

3. Now, let's simplify the ratio of moles of aluminum to moles of oxygen:

- Moles of aluminum (Al): 2

- Moles of oxygen (O): 3

The simplest whole number ratio of moles of aluminum to moles of oxygen is 2:3. This suggests that the formula for aluminum oxide is Al2O3.

So, the correct answer is:

c) Al2O3

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