Given two gas samples: one of N2 and one of He. If the two samples are at the same temperature, which will effuse at a faster rate and by what factor?

Sometimes in Io we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. collected gas Suppose the O, gas evolved by a certain chemical reaction taking place at 30.0 °C is collected over water, using chemical reaction water an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 44.8 mL. Sketch of a gas-collection apparatus ab Calculate the mass of O, that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. Explanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use I Privacy Center | Accessibility 6:20 AM N 35°F Mostly cloudy ENG 1/23/2022 Pll 26 506 F90 T. 4. R] T Y D F

Consider the following five gases: • Gas 1: H2Se(g) • Gas 2: CH3NH2(g) • Gas 3: C2H68 • Gas 4: NO,F(g) •Gas 5: CH3PF,(g) Which gas would have the highest rate of effusion? Which gas would have the lowest rate of effusion? For each answer, explain how you know.

A gas of unknown molecular mass was allowed to effuse through a small opening under constant pressure conditions. It required 72 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 27 s for 1.0 L of 02 gas to effuse. Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.) 367.1175859 X g/mol