When natural gas burns, CO2 is formed. If 0.25 moles of CO2 is formed, what mass of CO2 is produced?
Difficulty: Easy
Problem solving strategy:
Carbon dioxide is a molecular substance. Determine its molar mass and use it to convert moles to mass in grams.
0.25 moles of CO2 ➝ ?g of CO2
Solution:
Molar mass of CO2
= 12 + (16 x 2)
= 44 g
1 mole of CO2 = 44 g of CO2
So, 0.25 moles of CO2
= 44 x 0.25
= 11g of CO2