Ka of ethanoic acid
When 5mls of 0.05M CH3COOH is allowed to react with 1.5mls of 0.05M KOH. The pH is found to be 4.43.Using the Henderson-Hasselback equation, calculate the pKa and thus the Ka of ethanoic acid.(hint :note concentrations at equilibrium*)
Now Priced at $5 (50% Discount)
Divers often inflate heavy duty balloons attached to salvage items on the sea floor. If a balloon is filled to a volume of 3.00 L at a pressure of 2.50 atm, what is the volume of the balloon when it reaches the surface?
If a drop of NaOH solution had adhered to the side of the Ehrlenmeyer flask during the standardization of the NaOH solution, how will this error affect the reported MM of the unknown acid( higher or lower than actual value) Explain using mathamati
Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, in a flask with V = 140.612 mL at 23.5?C. Calculate the initial and final pressure (atm).
Calculate the amount (mL) of Compound A needed to give 12 mmol. MW of Compound A: 32.04 g/mol Density of Compound A: 0.79 g/mL
The decomposition of aqueous hydrogen peroxide to gaseous O2 and water is the first order reaction. If it takes 8.0 h for the concentration of H2O2 to decrease from 0.80 M to 0.40 M. How many hours are required for the concentration to decrease fr
What volumes of 0.150 M acetic acid and 0.065 M NaOH solutions must be mixed to prepare 1.00L of a buffer solution of pH 4.50 at 25C.(Show all work for 5 stars)
The reaction H2 + O2 + N2 ? NO + HNO + H is shown to have the following rate behavior: Rate (M/s) [H2] (M) [O2] (M) [N2] (M) 0.0028 0.2 0.4 0.2 0.0028 0.4 0.4 0.2 0.0056 0.4 0.4 0.4 0.0056 0.4 0.8 0.4 a) What is the rate law for the reaction. b) W
Consider the hydrogenation of benzene to form cyclohexane C6H6(l) + 3H2(g)-->C6H12(l) Delta H for combustion to CO2(g) and/or H20(l) at 298 K for C6H12, C6H12 and H2 is -3270, -4000, and -286 kJ mol-1, respectively. Cp for C6H6, H2, and C6H12 is
A buffer solution contains 0.17 mol of propionic acid and 0.24 mol of sodium propionate in 1.50 L. What is the pH of the buffer after the addition of 0.01 mol of HI?
Calculate the conentrations of the Ions, and the molar solubility and the solubility product constant for this salt at 25 degressC. Show Balanced Reaction.
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!