which of the following contains(a) 4.4gm Co2 (b) 3.4gm NH3 (c) 1.6gmCH4 (d) 3.2gm So2
Answers
Answer:
Explanation:
U haven't mentioned the complete question if u want no. Of molecules or no. Of atoms
Answer is here
i)4.4 gm of CO2. [Co2=12+(16*2)]=44amu
No. Of molecules=[Given mass/Molar mass] * NA
=[4.4/44] * NA
=0.1*6*10²³
=6*10²²
No of atoms=6*10²² * 3= 1.8*10²³
ii)3.4gm of NH3. [14+3]
No. Of molecules =[ 3.4/17]*NA
No. Of molecules =0.2*6*10²³=1.8*10²³
No. Of atoms=1.8*10²³*4=. 7.2*10²³
iii)1.6 Gm of CH4. [12+4=16amu]
No. Of molecules=[1.6/16]*NA
=6*10²²
No. Of atoms=6*10²²*5= 3*10²³
iv)3.2gm of SO2. [32+32=64
No. Of molecules=[3.2/64]*NA
=0.2*6*10²³
1.8*10²³
No. Of atoms=1.8*10²³*3=. 5.4*10²³
This is as per ur incomplete question
This is if u want which of these options have max no. Of atoms
=3.4gm of NH3
This is if u want the minimum no. Of atoms
=4.4 gm of CO2
Thank you