How many molecules are there in 5.00 grams of carbon dioxide? please show how you got your answer :)

6.84 * 10^22 molecules.

Explanation:

Divide the amount of grams you have by the molar mass which is 5/44.01 which equals 0.11 moles.  Multiply the number of moles by Avagadros number which gives us 6.84 * 10^22

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation: