How many particles are present in an 8*g mass of dioxygen molecules under different conditions of pressure and temperature?

1 Answer
Jun 7, 2017

An 8*g mass of dioxygen gas contains the same number of molecules under any conditions.............

Explanation:

And number of molecules.....

="Mass"/"Molar mass of dioxygen"xxN_A, where N_A = "Avogadro's number," 6.022xx10^23*mol^-1,

=(8*g)/(32.00*g*mol^-1)xx6.022xx10^23*mol^-1

=1/4xxN_A~=1.5xx10^23..............