How many atoms of oxygen are contained in 12.3 kg of carbon dioxide?

Answer 1

12.3 kg=12,300 g

12,300 g/44.01g (molar mass) = 279.5 moles

279.5 moles x (6.02 x 10^23) = 1.68248 x 10^26 x 2 =

3.366 x 10^26 atoms of Oxygen in CO2

Answer 2

To find the number of atoms of oxygen in 12.3 kg of carbon dioxide, you would first convert 12.3 kg to grams (12.3 kg = 12,300 g). Then, use the molar mass of carbon dioxide (CO2) to calculate the number of moles of CO2. From the chemical formula CO2, you know that there are 2 atoms of oxygen in each molecule of CO2. Finally, use Avogadro's number (6.022 x 10^23) to calculate the number of oxygen atoms in 12.3 kg of carbon dioxide.

In summary, the number of atoms of oxygen in 12.3 kg of carbon dioxide can be found by:

1. Converting 12.3 kg to grams (12,300 g).
2. Calculating the number of moles of CO2 using the molar mass of CO2.
3. Knowing there are 2 oxygen atoms in each CO2 molecule.
4. Using Avogadro's number to determine the total number of oxygen atoms in 12.3 kg of carbon dioxide.

Answer 3

The answer is 0,279 moles.

Answer 4

The answer is 6,167.1023 molecules.