Which of the following contains maximum number of atoms? a. 22.4 L of CO2(g) at STP b. 1 g molecule of CaCO3 c. 1 mole of SO3(g) d. 6*10²³ molecules of NH3

1 Answer
Jul 8, 2017

Answer:

All, save #b.# represent approx. a mole of molecules...........#"Option c"# is the best answer............

Explanation:

And a mole specifies #6.022xx10^23# individual molecules.......and is represented by the #N_A#.

#a.# contains #3xxN_A# atoms.........

#b.# contains #(1*g)/(100.1*g*mol^-1)xx3xxN_A# atoms.........

#c.# contains #4xxN_A# atoms.........i.e. #3N_AxxO# atoms, and #N_AxxS# atoms.....

#d.# contains (almost) #4xxN_A# atoms.........i.e. #N_AxxN# atoms, and #3xxN_AxxH# atoms.....