Question

Which among the following has highest number of atoms? 1)5g of CO2 2) 4 g of CO 3) 1g of H2 4) 6g of O3

Answer 1

Answer:

Option (3) 1 g of H₂

Explanation:

We know that one mole of any substance contains 6.022 ×10^23 atoms

Therefore whichever substance has greater no. of moles will have the highest number of atoms

Also we know that

No. of moles = Weight / Molecular Weight

Checking the options one by one

(1) 5g of CO₂ = 5/44 moles    (∵ Molecular weight of CO₂ = 44 )

(2) 4g of CO₃ = 4/60 moles    (∵ Molecular weight of CO₃ = 60 )

(3) 1g of H₂ = 1/2 = 0.5 moles   (∵ Molecular weight of H₂ = 2 )

(4) 6g of O₃ = 6/48 = 1/8 moles

Among all the four, the heightest moles is that of 1 g of H₂,

Therefore 1g of H₂ has the highest number of atoms

Answer 2

Answer:

answer of this question is 1g H2....