1. A 1.64-g sample of an unknown gas has a volume of 589 mL and a pressure of 757 mm Hg at 38.6 °C. Calculate the molar mass of this compound. g/mol 2. Calculate the density of methane gas (in g/L) at 584 mm Hg and 36.4 °C. g/L
If an ideal gas has a pressure of 7.77 atm, a temperature of 389 K, and has a volume of 18.17 L, how many moles of gas are in the sample? Number mol Tools x 10
What is the molar mass of a gas that has a density of 2.62 g/L at 2.00 atm and 25.0 degree C? 2.69 g/mol 64.0 g/mol 28.0 g/mol 32.0 g/mol 16.0 g/mol What volume is occupied by 1.00 mol of an ideal gas at 1.00 atm and 0.00degreeC? 27.2 L 15.0 L 22.4 L 22.7 L 22.1 L
It is found that 250 mL of a gas at STP has a mass of 0.496 g. What is the molar mass of the gas?
18. If you have a volume of 10 mL and a mass of 100 kg, what is the density? 19. If you have a mass of 50 g and a density of 2 g/mL, what is the volume? 25 ml If you have a volume of 55 L and a density of 2 kg/L, what is the mass? 20. 21. If you have a density of 15 g/mL and a mass of 5 g, what is the volume? (Don't use...
If the gas has a molar mass of 86 g/mol, what is the density of a gas (in g/L) at 25.0°C and 124.1 kPa? Consider four identical 1.0-L flasks containing the following gases each at 25°C and 1 atm pressure. For which gas do the molecules have the greatest average kinetic energy? A. Ne B. Ar C. He D. Kr E. same for all the gases
What is the mass of a rectangular block in pounds (lbs) with length = 3.5cm, width =2.1cm and height= 1.2 cm and density 4.56 g/mL. (1 lbs= 453.5g).
An experiment shows that a 244 mL gas sample has a mass of 0.432 g at a pressure of 755 mmHg and a temperature of 22 ∘C. What is the molar mass of the gas? A D ? g/mol Molar Mass
A gaseous sample of a compound has a gas density of 0.647 g/L at 694 torr and 20 °C. What is the 4. molar mass of this compound? If this compound contains only nitrogen and hydrogen, and is 82.2% nitrogen by mass, what is its molecular formula? 5. What is the density in g/L of neon gas at STP?
An unknown gas at 75.1 ∘C and 1.00 atm has a molar mass of 30.07 g/mol. Assuming ideal behavior, what is the density of the gas? density: ______ g/L