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- The graph below shows approximate plots of lnP vs. T-1 for three compounds: methanol (CH3OH), methyl chloride (CH3Cl), and propane propane (C3H8), where P is the vapor pressure of the liquid. Match the lines with the compounds. A) A = propane, B = methanol, C = methyl chloride B) A = methyl chloride, B = methanol, C = propane C) A = propane, B = methyl chloride, C = methanol D) A = methanol, B = propane, C = methyl chloride E) A = methanol, B = methyl chloride, C = propaneCalculate the following exercise with correct sig figs: ((2.9365mL - 3.00mL)/3.00mL)x100%For the equation 2K + Cl2------>2KCl. I understand Cl is diatomic , but where does the 2 in front of the K come from.
- 2c4h6 ->c8h12 studied at 500kDetermine the boiling point of CS2, in °C, from the following data: CS2(g) CS2(l) ΔHf° / (kJ mol–1) 115.3 87.9 S° / (J mol–1 K–1) 237.8 151.0 Answer Options: 258 -14 116 78 43Calculate the density of a mixture of methanol (CH3OH) and water at 20oC having acomposition of 40% w/w methanol (State your assumption(Density of water at 20oC = 998.2 kg/m3; Density of methanol at 20oC = 791.2 kg/m3)
- Chlorophyll absorbs photons strongly in two bands, one between 340 and 450 nm and the other between 650 and 680 nm. Chlorophyll collects and transfers the photon energy to fix CO2 into carbohydrate CH2O units according to CO2 + H2O → (CH2O) + O2 where the (CH2O) indicates one carbon unit of the carbohydrate. The average enthalpy change for the addition of a carbon unit to a carbohydrate is ΔH = 485 kJ/mol. What is the minimum number of 660 nm photons needed by chlorophyll to add a carbon unit to a carbohydrate? (Remember that there’s no such thing as a partial photon.) Please no copy paste from anywhereChlorophyll absorbs photons strongly in two bands, one between 340 and 450 nm and the other between 650 and 680 nm. Chlorophyll collects and transfers the photon energy to fix CO2 into carbohydrate CH2O units according to CO2 + H2O → (CH2O) + O2 where the (CH2O) indicates one carbon unit of the carbohydrate. The average enthalpy change for the addition of a carbon unit to a carbohydrate is ΔH = 485 kJ/mol. What is the minimum number of 660 nm photons needed by chlorophyll to add a carbon unit to a carbohydrate? (Remember that there’s no such thing as a partial photon.) Please no copy pasteHow many degrees of freedom does the CO2 molecule have? How many are translational, how many rotation and how many vibration?