A sample of ethane (C2H6) gas has a root mean squared (rms) velocity of gas is 411.1 m/s. What is the temperature, in K, of the sample? C: 12.011 g/mol H: 1.008 g/molvh3

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

Is it safe to take 450mg of diphenhydramine hydrochloride?