42. A given mass gas occupies a volume of 4.00 L at 60°C and 650 mmllg? 550 mathematical expressions will yield its temperature at 3.00 Land D) 3.00 L 550 mmH 333 K x 4.000 L 650 mmiH 4.00 L 650 mmHg. 60°Cx 3.00L 350 mmHg 4.00 L 550 mml 333 K x 3.00 L 650 mm 333 K x 4.00 L 650 mmHg 3.000 L 550 mmHg 333 3.00 L 650 mmH K x 4.00 L 550 mmHg 43. occupies a volume of 4.25 Lat 850 mmHg and 65.0°C. Which of the following r expressions will yield volume at STP? 850 mmHg 2 4.25 Lx 760 its D) 4.25 Lx 760 mmHg mmHg 273 K 850 mmHg 338 K 850 mmHg 4.25 Lx mmHg. 760 760 mmHg 298 K 4.25 Lx mmHg 338 K 850 760 mmHg 338 K B) 4.25 Lx mmHg 273 K. 850 44. Which conditions of P. T and n, respectively, are most ideal? D) low P, low T, low n W high P, low T, high n E) low P, high high n high P, high T, high n low high T, low n 45. The behavior of PH (g) is most likely to approach ideal behavior at D) 10 atm and 100°C. A) 0.10 atm and -100°C. E) 1.0 atm and 100°C. B) 0.10 atm and 100°C. C) 1.0 atm and 0°C. The density of a gas is 1.25 g/L at STP. What is its molar mass? A) 17.9 gmol B) 41.6 g/mol C) 37.6 g/mol D) 22.4 g/mol In the van der Waals equation, effect of intermolecular forces is accounted for by B) E) b h molecule or ion is not planar?