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The equalibrium constant for the reaction AgBr(s)<--> Ag^+(aq)+Br^-(aq) is the solubility product constant, Ksp=7.7x10^-13 at 25 degrees C. Calculate deltaG for the reaction when [Ag+]=6.0x10^-2 M and [Br-]=6.0x10^-3 M. Is the reaction spontaneous or nonspontaneous at these concentrations(R=8.314 J/Kmol)?A. DeltaG= 4.95E1 kJ/mol;nonspontaneousB. DeltaG= 8.88E1 kJ/mol;nonspontaneousC. DeltaG= -69.1 kJ/mol;spontaneousD. DeltaG= 1.96E1;nonspontaneousE. DeltaG= 69.1 kJ/mol;spontaneous
The reading on a mercury manometer at 25 deg C (open to the atmosphere at one end) is 56.38 cm. The local acceleration of gravity is 9.832 m s-2.
A 9.780 g. gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requires 1.120 mol of oxygen. Calculate the mass percent of ethane in the original mixture.
predict the hydration product of limonene if two molecules of water are added to a limonene molecule. 2. draw the expanded structure of D-limonene and circle the two isoprene units in limonene.
What is the heat change in J associated with 74 g of gaseous butane at 91 oC changing to solid at -170 oC? c(butane) (gas) = 2.31 J/ (g.K) c(butane) (liq) = 1.65 J/(g.K) c(butane) (s) = 1.32 J/ (g.K) ?Hfus(butane) = 6.885 kJ/mol
A sample containing 2.40 moles neon gas has a volume of 8.00 L. Assume that the pressure and the temperature remain constant.What is the new volume of gas in liters when a leak allows one-half of the neon atoms to escape?
Draw a molecule of NH2Cl and a molecule of H2O. Indicate the type and location of the strongest intermolecular force of attraction between the two molecules.
calculate the moles of CO2 you would theoretically expect from 0.203 grams of an alka-seltzer tablet at 700. torr and 285. K.
What is the expected freezing point of a solution of 110.5 g of H2SO4 in 225 g of water? Assume sulfuric acid completely dissociates in water.
the heat of fusion of a compound is 126 joules per gram. What is the total number of joules of heat that must be absorbed by 15.0- grams sample to change he compound from solid to liquid at its melting point?
Explain the Reaction, If you treat an aldehyde wiith HCN you produce a cyanohydrin. For example
A flask contains 0.110 mol of liquid bromine, rm Br_2. Determine the number of bromine molecules present in the flask.
What mass of O2 is required for the complete combustion of 68.9 g of pentane, C5H12, to CO2 and H2O?
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