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A mixture initially contains and in the following concentrations: a= 0.700M , b= 1.25M , and C= 0.550M . The following reaction occurs and equilibrium is established: A+2b=C At equilibrium, A = 0.530 and C= 0.720 . Calculate the value of the equilibrium constant, .Kc Express your answer numerically.
For the equilibrium H2(g)+ CO2(g) H2O(g)+CO(g) Kc=3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M.
A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?
Assume in state A, V=4.00dm&3, p=1.00atm, t=300K, Va=10Vb, Pc/Pb=5 and Cp,m= 7/2R. Determine the change in entropy of the system and the surroundings for each step of the cycle.
A particular element M has a heat capacity of 0.36 JgK and it forms an oxide that contains 2.9 grams of M per gram of oxygen What is the molar mass of the metal
What is the freezing point of a solution made by mixing 1.40 mol sodium sulfate, Na2(SO4), 1750 g H2O? (Kfp=1.86 C/m)
What is the % barium in an alloy if it takes 22.0 mL of 0.875M sulfuric acid solution to react with all the barium in a 7.59 g sample of the alloy
The inner and outer surfaces a spherical shell with radii of 1cm and 2cm are 300C and 100C respectively .If the thermal conductivity of the shell is 2w/m.k,determine the heat transfear through the shell.
Calculate the grams of sloute required to perpare 750ml of a 7.5 x10-3 M from NiSO46H2O.
Ethanol (CH3CH2OH), the intoxicant in alcoholic beverages, is also used to make other organic compounds. In concentrated sulfuric acid, ethanol forms diethyl ether and water
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
1) What is the overall charge state for the tetrapeptide DREAM at physiological pH. The pK values for N-terminal, C-terminal, side chain of asp, arg, glu are 9.0, 3.5, 3.9, 12.5, and 4.1
Consider the combustion reaction between 30.0mL of liquid methanol ( density = 0.850 g/mL) and 15.0L of oxygen gas measured at STP. The products of the reaction are CO2 and H2O
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