pls help me to solve this questions

2- A refinery stack emits gas mixture of 15%CO2,10%CO,5%H2,35%N2, 10%O2 and the balance H2O (in mole \%). The mixture is flowing at rate of 1500kg/min. a- Calculate the mass % of the mixture. b- Calculate the average molecular weight. c- Calculate the total molar flow rate in Kmole/hr. d- Calculate the mass flow rate of CO2. - A coal combustion batch reactor produces CO2 as a product. How of each of the following are contained in 100.0g of CO2 (molecular weight (MW)= 44g/gmole )? (1) mole CO2; (2) lb-moles CO2; (3) mole C; (4) mole O; (5) mole O2; (6) gO2; (7) molecules of CO2