g A solution containing 3.6 mol of benzene ( C6H6 , b. p. 80°C) and 5.4 mol of toluene (C6H5CH3 , b. p 110°C) is placed in a closed container at 35°C. Some evaporation takes place. What is the mole fraction of toluene in the vapor phase when equilibrium is reached? At 35°C, vapor pressures are: benzene 160. torr, toluene 50.0 torr. HINT: Use Raoult’s Law to find the total vapor pressure, then calculate the fraction of the pressure that is due to toluene vapor. A) 0.52 B) 0.67 C) 0.33 D) 0.14 E) 0.60

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Listen base your answer to the question on the information below. propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below. c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol. what is the correct structural formula for a molecule of methanethiol

Calculate the number of molecules present in 0.750 mol of mgo.