If a 1.79-g sample of a gas occupies 1.0 L at STP, what is the molar mass of the gas at 125 C? 40.1 g/mol 58.5 g/mol O 18.4 g/mol O5.48 g/mol

12. What is the molar mass of a gas that has a density of 5.75 g/L at STP?

What volume in liters will 1 mole of ideal gas occupy under at STP? 44.651 L 22.414 L O24.465 L 0002241 D Question 7 Which of the following is a true statement? Oceans are naturally acidic and becoming more acidic as the concentration of CO₂ in the atmosphere increases Oceans are naturally alkaline and becoming more acidic as the concentration of CO₂ in the atmosphere increases Oceans are naturally pH-neutral and becoming more alkaline as the concentration of CO₂ in the atmosphere increases None of the above. D Question 8 Acid rain is caused by which of the following compounds? Carbon dioxide and sulfur dioxide Sulfur dioxide and nitrogen oxides O Carbon monoxide and nitrogen axides None of the above D Question 9 Chesapeake Bay's poor health is mostly a result of pollution with the following Radionuclides Nutrients Pathogens O Volatile Organic Compounds

What pressure must be applied to N2(g) to obtain a density of 2.00 g/L at 25 °C? (R= 0.08206 Latm mol K1) O 1.53 atm O 1.82 atm O 1.75 atm O 1.98 atm O 1.67 atm

Calculate the density of CO2 in g / L , at STP. Calculate number of moles of gas that occupies a volume of 1.75 L