Multiple ChoiceWhat is the density (in g/L) of xenon (Xe) gas at a pressure of 788 mmHg and a temperature of 25°C? (Molar mass of Xe = 131.3 g/mol; R = 0.0821 L·atm/(mol·K))22views
Multiple ChoiceA gas with a molar mass of 26.54 g/mol is at a pressure of 172 torr and a temperature of 27 °C. What is its density in g/L?19views
Multiple ChoiceWhat is the density of CO_2 gas (in g/L) at STP conditions if 2.50 g occupies 5.60 L at 789 torr?18views
Multiple ChoiceAt 20 °C, the density of water is approximately 0.998 g/cm^3. How many grams of water are contained in a 0.127 L sample at 20 °C?17views
Multiple ChoiceWhat is the density (in g/L) of a sample of N_2 gas at 70.0 °C and 2.50 atm pressure? (Use R = 0.0821 L·atm·mol^{-1}·K^{-1})31views
Multiple ChoiceWhich expression represents the volume of a substance in terms of its mass (m) and density (d)?21views