Question

1. A sample of hydrogen is collected over water at a temperature of 23⁰C. The pressure inside the tube is determined to be 689 mmHg, and 12.10 mL of gas has been collected. What would the volume of collected hydrogen be at STP?
2. a weird lab decided to use glycerin, a liquid with a density of 1.260 g/mL. If the water level inside the tube was 12.31 cm higher than outside the tube, and the atmospheric pressure measured 728 mmHg, what was the pressure inside the tube in mmHg?

please answer all of the questions..

Answer 1

Solution - 1 - Given- T-23°c (273+23) K = 295k P = 689 min nHg V = 12.10 ML -0.9066 aten 12.10X16-3 bal. At STP, T= 298 K P = 1 bar = 0.987 otur V=2 Use Pivo P₂ V2 T2 formula Ti 0.987 X V₂ 298 → 0.9666 X 12.jos y lo-3 29.6 i's V2 = 11.198103 L V2 = 11.19 mL Aug