Find the no of O atoms in terms of NA present in 11200cc of CO2

Sure, let's solve this step by step:

1. First, we need to know that 1 mole of any gas at standard temperature and pressure (STP) occupies 22.4 liters or 22400 cc.

2. Given that we have 11200 cc of CO2, we can calculate the number of moles of CO2. This is done by dividing the given volume of CO2 by the volume of 1 mole of gas at STP. So, 11200 cc / 22400 cc/mole = 0.5 moles of CO2.

3. In one molecule of CO2, there are 2 atoms of Oxygen. Therefore, in 1 mole of CO2, there are 2 moles of Oxygen atoms.

4. So, in 0.5 moles of CO2, there would be 0.5 * 2 = 1 mole of Oxygen atoms.

5. Avogadro's number (NA) is the number of particles in one mole of a substance. It is approximately 6.022 x 10^23.

6. Therefore, the number of Oxygen atoms in 11200 cc of CO2 would be 1 mole * NA = NA.

So, the number of Oxygen atoms in terms of NA present in 11200 cc of CO2 is NA.