14. Suppose the boiling point of a 20 mL pure solvent and the solution was found to be 70.00°C and 73.50°C, respectively. The Kp for ethanol is 1.22 °C/mol and the density of ethanol is 0.785 g/mL. Determine the molar mas of the unknown, if 2.345 g was used.

2 HBr(g) ↔ H2(g) + Br2(g) this reaction has an equilibrium constant Kp = (8.5x10^-5). If the equilibrium partial pressure of H2(g) is (7.22x10^-1) bar and Br2(g) is (4.02x10^0) bar, what the is equilibrium partial pressure of HBr in bar?

Please provide detailed solution and give the explanation of the concept

In addition to filling in the blanks below, show all of your work for this problem on paper for later upload. NO is an air pollutant that is produced in internal combustion engines at high temperatures. The reaction that applies in this case is: N2(g) +O2(g) = 2 NO(g) which has K.= 1.7 ´ 10°3 at 2300 K. If the initial concentrations of N2 and O2 are both 1.40 M, determine the concentrations of all three species at equilibrium. %3D Enter your value of [N2] in splution in the first box and an appropriate unit of measure in the second box. A Enter your value of [O2] in solution in the first box and an appropriate unit of measure in the second box. Enter your value of [NO] in solution in the first box and an appropriate unit of measure in the second box.

For the reaction 2A(g) <===> B(g)+2C(g), a reaction vessel initially contains only A at a pressure of PA=895torr . At equilibrium, PA=65torr. First convert torr to atm by dividing by 760, and next use an ICE table to help calculate the value of Kp. (Assume no changes in volume or temperature.) Express your answer using two significant figures.

While ethanol (CH,CH,OH) is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene (CH,CH,) with water vapor at elevated temperatures. A chemical engineer studying this reaction fills a 100 L tank with 45. mol of ethylene gas and 35. mol of water vapor. When the mixture has come to equilibrium he determines that it contains 34. mol of ethylene gas and 24. mol of water vapor. The engineer then adds another 18. mol of water, and allows the mixture to come to equilibrium again. Calculate the moles of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits. | mol

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At a certain temperature, 0.760 mol SO, is placed in a 2.50 L container. 2 SO,(g) = 2 SO2(g) + O,(g) At equilibrium, 0.120 mol O, is present. Calculate K.. Ke

Which of the following compounds is most soluble in water? Assume that all Ksp values are for identical conditions. a) zinc hydroxide, Ksp = 7.7x10–17 b) calcium phosphate, Ksp = 2.2x10–33 c) magnesium fluoride, Ksp = 7.4x10–11 d) lithium carbonate, Ksp = 8.2x10–4

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