Consider two gas cylinders of the same volume and temperature, one containing 1.0 mol of propane, c3h8, and the other 2.0 mol of methane, ch4. which of the following statements is true? consider two gas cylinders of the same volume and temperature, one containing 1.0 of propane, , and the other 2.0 of methane, . which of the following statements is true? the c3h8 and ch4 molecules have the same urms. the rate at which the molecules collide with the cylinder walls is the same for both cylinders. the c3h8 and ch4 molecules have the same average kinetic energy. the gas pressure is the same in both cylinders.

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction