HOW MANY ATOMS OF OXYGEN ARE PRESENT IN 8.8G OF CARBON(IV)OXIDE

One only

To find out how many atoms of oxygen are present in 8.8g of carbon(IV) oxide, you will need to use the concept of moles and the molar mass of carbon(IV) oxide.

1. First, we need to determine the molar mass of carbon(IV) oxide (CO2). Carbon has an atomic mass of 12.01 g/mol, and oxygen has an atomic mass of 16.00 g/mol. Since there are two oxygen atoms in each CO2 molecule, we calculate the molar mass as follows:

Molar mass of CO2 = (2 × molar mass of oxygen) + molar mass of carbon
Molar mass of CO2 = (2 × 16.00 g/mol) + 12.01 g/mol
Molar mass of CO2 = 32.00 g/mol + 12.01 g/mol
Molar mass of CO2 = 44.01 g/mol

2. Next, we can calculate the number of moles of carbon(IV) oxide using its molar mass and the given mass of 8.8g:

Moles of CO2 = Mass of CO2 / Molar mass of CO2
Moles of CO2 = 8.8g / 44.01 g/mol
Moles of CO2 = 0.2 mol

3. Now, since there are two oxygen atoms in each CO2 molecule, we multiply the number of moles of CO2 by 2 to determine the number of moles of oxygen:

Moles of oxygen = 2 × Moles of CO2
Moles of oxygen = 2 × 0.2 mol
Moles of oxygen = 0.4 mol

4. Finally, we use Avogadro's number to calculate the number of atoms of oxygen:

Number of atoms of oxygen = Moles of oxygen × Avogadro's number
Number of atoms of oxygen = 0.4 mol × 6.022 × 10^23 atoms/mol
Number of atoms of oxygen ≈ 2.409 × 10^23 atoms

So, there are approximately 2.409 × 10^23 atoms of oxygen in 8.8g of carbon(IV) oxide.

To determine the number of atoms of oxygen present in 8.8g of carbon dioxide (CO2), we can follow these steps:

1. Obtain the molar mass of carbon dioxide (CO2):
- Carbon (C) has a molar mass of 12.01 g/mol.
- Oxygen (O) has a molar mass of 16.00 g/mol.
- Since carbon dioxide (CO2) contains one carbon atom and two oxygen atoms, its molar mass can be calculated as follows:
Molar mass of CO2 = (1 * molar mass of carbon) + (2 * molar mass of oxygen)
= (1 * 12.01 g/mol) + (2 * 16.00 g/mol)
= 12.01 g/mol + 32.00 g/mol
= 44.01 g/mol

2. Calculate the number of moles of CO2:
- To find the number of moles, divide the given mass (8.8g) by the molar mass (44.01 g/mol):
Moles of CO2 = mass of CO2 / molar mass of CO2
= 8.8g / 44.01 g/mol
= 0.1996 mol

3. Determine the number of atoms of oxygen:
- From the balanced chemical formula of carbon dioxide (CO2), we know that for every one mole of CO2, there are two moles of oxygen (O2).
- Therefore, multiply the number of moles of CO2 by the Avogadro's number (6.022 x 10^23 atoms/mol) and then multiply it by 2 to get the number of oxygen atoms:
Number of oxygen atoms = (moles of CO2) * (Avogadro's number) * (2)
= 0.1996 mol * (6.022 x 10^23 atoms/mol) * 2
≈ 2.4 x 10^23 atoms of oxygen

So, there are approximately 2.4 x 10^23 atoms of oxygen present in 8.8g of carbon dioxide.

CO2.

moles of CO2=8.8g/44g

moles of O=2*8.8/44

atoms O= avagnumber*moles of O