Question

Calculate the number of moles in 44.8l of co2 at stp

Answer 1

22.4 l contains 1 mole
44.8 l contains 1*44.8/22.4
                      = 2 moles

Answer 2

Given:  

Volume of carbon dioxide gas = 44.8 L  

Since at STP ; 22.4 L = 1 mole of gas

$Hence\ 44.8 L=\left(\frac{1}{22.4}\right) \times 44.8$

                          =2 moles of gas.

Hence we can say that at STP; the 44.8 L of carbon dioxide gas contains 2 moles of gas. Here STP indicates the standard temperature and pressure conditions which is 22.4 L volume, at 1 atmospheric pressure and the temperature at 273 K.