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

1 Answer
anor277
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#..............

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