Which of the following contain highest number ofmolecules -(1) 2.8 gms

1.	Which of the following contain highest number ofmolecules -(1) 2.8 gms of CO(3) 1.7 gms of NH3(2) 3.2 gms of CH4(4) 3.2 gms of SO2
Answer» the compound having highest number of moles will contain higher number of molecules so, 2.8gm CO has moles = 2.8/28 = 0.1and 1.7gm NH3 has moles = 1.7/17= 0.13.2 gm of CH4 has moles ,= 3.2/16 = 0.2 so, option 2 is the answer. (1)2.8/12+16=.1 and (2)3.2/16 =.2 and (3) 1.7/17=.1and(4) 3.2/64=.05 so (2) will be correct

Which of the following contain highest number ofmolecules -(1) 2.8 gms of CO(3) 1.7 gms of NH3(2) 3.2 gms of CH4(4) 3.2 gms of SO2

Answer»

the compound having highest number of moles will contain higher number of molecules

so, 2.8gm CO has moles = 2.8/28 = 0.1and 1.7gm NH3 has moles = 1.7/17= 0.13.2 gm of CH4 has moles ,= 3.2/16 = 0.2

so, option 2 is the answer.

(1)2.8/12+16=.1 and (2)3.2/16 =.2 and (3) 1.7/17=.1and(4) 3.2/64=.05 so (2) will be correct