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The value of Ka in water at 25 degrees Celcius for benzoic acid, C6H5COOH (aq), is 6.3 x10-5 M. Calculate the pH and the concentration of the other species in a 0.0200-M aqueous solution of C6H5COOH (aq).
An aliquot of 14.045 grams of this solution is titrated with 0.1043 M hydrochloric acid (HCl.) and it required hydrochloric acid (HCl solution) of 29.18 mL to reach the methyl red endpoint. Compute the weight % Ammonia (NH3) in the aqueous waste.
A 479-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 12.1 g CO2. What was the concentration of the HCl solution?
Consider the autodissociation of water as the behavior of an Arrhenius acid. Use this to explain the temperature dependence of the autoionization of water and use it to explain
If 5.0 g of H2 are reacted with excess CO, how many grams of CH3OH are produced, based on a yield of 86%? CO(g) + 2H2(g) -> CH3OH(l)
Using a solution of KMnO 4 has a percent transmittance of 27.3 percent when observed in a 1.15-cm cell at a wavelength of 525 nm. Compute the absorbance of this solution.
if 1.205 g of KHP required 25.25 mL of NaOH solution for complete neutralization, what is the molarity of the NaOH sodium hydroxide solution?
What is the basic structure of phosphatidyl cholines, and how do they work as emulsifiers? Why is there so much research interest in phosphatidyl cholines
Consider a steel tank whose volume is 49.0 L and which contains O2 gas at a pressure of 18100 kPa at 29°C. What volume would the gas occupy at STP?
if 88.6L of H2 measured at STP is allowed to react with 158.3g of P4, what is the limiting reactant?
What two elimination products are formed from each substrate? Why do you suppose the ration of elimination to substitution is the same for the two substrates?
Choose a more convenient order. (b) Calculate q, w, deltaU, deltaH, and deltaS when the gas changes between the same two conditions
Water and toluene are very good recrystallization solvents. Why is it not useful to use these solvents for a ‘quick' recrystallization?
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