Question

in CO2 the total number of oxygen atoms if the volume content of CO2 at stp in 1l air is 0.03%

​

Answer 1

Answer:

so in 1litre CO2 contains 1/22.4 moles. 1/22.4×0.03=0.00133 moles. so the no. of molecules=6.022×10²³×0.00133=0.0080×10²³.