Answer :

Given: Volume of CO2 gas at STP = 112L

Gram molecular mass of CO2 = 44g


First, we will calculate the number of moles so that we can find the mass of CO2 gas


As we know 1 mole of any gas occupies 22.4 litres of volume.


1 mole of NH3 = 22.4 litre


22.4 × Number of moles = 112 litres



Number of moles = 5


Now, we can calculate the mass of CO2 gas by applying the formula given:



We can write,


Mass of CO2 gas = Number of moles × GMM of CO2


Mass of CO2 gas = 5 × 44g


Mass of CO2 gas = 220g


Thus, mass of 112 L CO2 gas at STP is 220g


Now, number of molecules = Number of moles × 6.022 × 1023


= 5 × 6.022 × 1023


= 3.011 × 1024


Thus, number of molecules of CO2 is 3.011 × 1024


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

500 mL of aKerala Board Chemistry Part I

500 mL of aKerala Board Chemistry Part I

Examine theKerala Board Chemistry Part I

Calculate tKerala Board Chemistry Part I

Calculate tKerala Board Chemistry Part I