Molar Volume of a Gas at STP

Gas changes volume with changes in temperature and pressure
STP = Standard Temperature and Pressure
        = 1 atmosphere of Pressure and a temperature of 0 C or 272.15k

At STP, 1 mole of gas occupies 22.4L

During the calculation, factors can be written as 1 mol/ 22.4L or 22.4L/ 1mol (which kind of factor depending on which type of unit you want to reduce)

Eg. calculate the volume occupied by 29.41g of CO2

First, you have to find the number of mol

29.41g x 1 mole/ 44.0g = 0.6684 mol
then you can calculate the volumeby using the factor
0.6884 mol x 22.4L/ 1 mol = 14.97
finally check the sig. fig.!!!
there are 4 sig. fig in the question so you will need 4 sig. fig in your final answer

Review: mole conversion map