The volume of the gas is 246 mL measured at 1.00 atm. ДҐ.67 A piece of sodium metal reacts completely with water as follows: 2Na(s) + 2H 2 0(/ ) ~NaOH(aq) + H2 (g) The hydrogen gas generated is collected over water at 25.0вЊ. We find that water at 25 C has a vapor pressure of 23.8 mm HG 5. Sapna Gupta/Solutions - Colligative Properties 3 0 H 2 O H 2 O H 2 O FP 0.9336 26.91 mol 1.915 mol 26.91 mol H 2 O F 26.91 mol 18.02 g mol mol H O 485 gx 2 1.915 mol 60.06 g mol mol urea 115 g x H O 0.9392 x 23.8 mmHg 22.

What is the molecular formula of the gas?. In an oxygen-nitrogen gas mixture at 1 atm, 25 0 C, the concentration of. At 20В°(, 0.100 g of the gaseous compound occupies a volume of 22.1 mL and exerts a pressure of 1.02 atm. ~~'Mn''}'') It) 5.50 A compound has the empirical formula SF 4. J (b) below the boiling point but above the freezing point of the substance? -.-'-~-ДҐ.19 A gas occupying a volume of 725 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm.

Which sample contains more molecules: 2.50 L of air at 50 C and 750 mm Hg pressure or 2.16 L of CO2 at 10 C and 765 mm Hg pressure Oxygen gas is commonly sold in 49.0 L steel containers at a pressure of 150 atm. Which of the following diagrams best represents the situation if the final temperature is (a) above the boiling point of the substance and 4.81 atm to pascals b) 1023 mm Hg to atm c). Assume that the temperature remains constant.ДҐ.17 A gaseous sample of a substance is cooled at constant pressure. 5.16 Explain why a helium weather balloon expands as it rises in the air. 5.14 The atmospheric pressure at the summit of Mt.

23.8 mmhg to atm