3 molecules of CO, weighsa) 33 x 10^-23gb) 11 x 10^-23gc) 44 x 10^-23g

1.	3 molecules of CO, weighsa) 33 x 10^-23gb) 11 x 10^-23gc) 44 x 10^-23gd) 22 x 10^-23g
Answer» Answer: Correction in the question : 3 molecules of CO2, weighs? SOLUTION Number of moles = Given mass / MOLAR Mass = Number of molecules / NA( Avagadro number) Mass = 3 × 44 / 6.02 × 10^23 Mass = 21.9 × 10^(-23) Mass = 22 × 10^(-23) OPTION (d) is the correct answer.

3 molecules of CO, weighsa) 33 x 10^-23gb) 11 x 10^-23gc) 44 x 10^-23gd) 22 x 10^-23g

Answer»

Correction in the question : 3 molecules of CO2, weighs?

Mass = 3 × 44 / 6.02 × 10^23

Mass = 21.9 × 10^(-23)

OPTION (d) is the correct answer.