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A solution containing 50.0 mL of 0.1500 M C2H3COOH is titrated with 0.1500 M NaOH. What is the pH of the solution after the addition of 25.0 mL of NaOH? pKa for C2H3COOH is 4.76
In chemical reactions the total number of moles of products must be the same as the total number of moles of reactants.
A reaction in which A,B ,C and react to form products is first order in A, second order in B, and zero order in C. What is the overall order of the reaction?
Calculate the entropy change for the irreversible process of water freezing at -10C. For the crystallization of water at 0C the heat of fusion is 6.01 kJ/mol. The specific heat capacity of water is 4.184J/g C and ice is 2.05 J/g C
Calculate the absolute error and relative error for each measurement made by the glucose monitor
5Fe2+ + MnO4- + 8H+ → 5Fe3+ + Mn2+ + 4H2O. Number of moles of electrons transferred in a two half cell reactions in the above overall reaction are
The raw sewage of a wastewater treatment plant has a BOD5 of 230 mg/L and suspended solids of 350 mg/L. Estimate the BOD5 and suspended solids concentrations in the primary effluent (assume typical removal efficiency for both parameters).
the explosive tnt is composed of 37.0 carbon 2.2 hydrogen 18.5 nitrogen and the rest oxygen. if the molar mass of tnt
what is the temperature of a gas if 5.0 moles of the gas occupy a 10 liter container at a pressure of 2.5 atm?
Acetone, C3H6O, and ethyl acetate, C4H8O2, are organic liquids often used as solvents. At 30 degrees C, the vapor pressure of acetone is 285 mmHg and the vapor pressure of ethyl acetate is 118 mmHg.
A buffer solution is prepared by mixing 20.0 mL of 0.032 M benzoic acid C6H5COOH(aq) solution with 25.0 mL of 0.022 M NaC6H5COO(aq). What is the pH of the buffer produced? (Ka of benzoic acid = 6.2x10^-5).
Based on a value of 0.240 and the given data table, what are the equilibrium concentrations of XY ,X , and Y, respectively
An electrochemical cell has an Eocell of 2.00 V and transfers 1 mole of electrons. The Faraday constant is 96,485 C/mol e-. What is the value of delta G
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