How many atoms are contained in 8.8 g of CO2?
8.8 g = how many moles? moles = grams/molar mass. Then there are 6.022E23 molecules in 1 mole. Finally, each molecule CO2 contains three atoms.
36132E23
To determine the number of atoms in a given amount of CO2, we need to use the Avogadro's number, which is 6.022 x 10^23 atoms/mol.
First, we need to determine the molar mass of CO2. The molar mass of carbon (C) is about 12.01 g/mol, and the molar mass of oxygen (O) is about 16.00 g/mol. Since CO2 contains one carbon atom and two oxygen atoms, its molar mass is calculated as follows:
Molar mass of CO2 = (1 * molar mass of C) + (2 * molar mass of O)
= (1 * 12.01 g/mol) + (2 * 16.00 g/mol)
= 12.01 g/mol + 32.00 g/mol
= 44.01 g/mol
Now we can calculate the number of moles of CO2 by dividing the given mass (8.8 g) by the molar mass of CO2:
Number of moles (n) = mass (g) / molar mass (g/mol)
= 8.8 g / 44.01 g/mol
≈ 0.1996 mol
Finally, we can determine the number of atoms by multiplying the number of moles by Avogadro's number:
Number of atoms = number of moles * Avogadro's number
= 0.1996 mol * (6.022 x 10^23 atoms/mol)
≈ 1.2018 x 10^23 atoms
Therefore, there are approximately 1.2 x 10^23 atoms in 8.8 g of CO2.
To determine the number of atoms in 8.8 g of CO2 (carbon dioxide), you'll need to use the concept of molar mass and Avogadro's number.
First, let's find the molar mass of CO2:
Carbon (C) atomic mass = 12.01 g/mol
Oxygen (O) atomic mass = 16.00 g/mol
To calculate the molar mass of CO2:
Molar mass of CO2 = (12.01 g/mol × 1) + (16.00 g/mol × 2)
Molar mass of CO2 = 12.01 g/mol + 32.00 g/mol
Molar mass of CO2 = 44.01 g/mol
Now that we know the molar mass of CO2 is 44.01 g/mol, we can use Avogadro's number to calculate the number of moles in 8.8 g of CO2:
Number of moles = Mass / Molar mass
Number of moles = 8.8 g / 44.01 g/mol
Number of moles ≈ 0.2 mol
Next, we can use Avogadro's number, which is 6.022 × 10^23 atoms/mol, to calculate the number of atoms in 0.2 mol of CO2:
Number of atoms = Number of moles × Avogadro's number
Number of atoms = 0.2 mol × 6.022 × 10^23 atoms/mol
Number of atoms ≈ 1.2044 × 10^23 atoms
Therefore, there are approximately 1.2044 × 10^23 atoms in 8.8 g of CO2.