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Question- John titrates an unknown weak acid with 0.200 M KOH. At the equivalence point, the pH was 7.72 and John added 34.4 mL of base. When he had only added 17.2 mL of KOH, the pH was 3.58. What is the Ka of the weak acid?
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Find free energy, entropy, enthalpy and volume of mixing for formation of 1.00 L of air from O2 and N2 at 298 K and 1 bar.
Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 1.00*10^2 102 mL of solution and then titrate the solution
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At a given temperature, 1.18 atm of F2 and 5.91 atm of Br2 are mixed and allowed to come to equilibrium. The equilibrium pressure of BrF is found to be 1.044 atm. Calculate Kp for the reaction at this temperature. F2(g) + Br2(g) 2 BrF(g)
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a river had a depth of 1 m a width of 40m and a flow of 20 m3sec. assume that the wind speed at 10 m elevation is 4
What is the value of the equilibrium constant for the neutralization of acetic acid with sodium hydroxide? The Ka for acetic acid is 1.8 ? 10-5 and the neutralization reaction of interest is CH3CO2H(aq) + NaOH(aq) -> H2O(l) + NaCH3CO2(aq).
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