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Can you please solve this for me. I do know the concept, but the answer I get does not match with the one provided. Calculate the pH at equivalence point when 40.0 ml of 0.50 M aniline is titrated with 30.0 ml of 0.67 M HBr. For aniline Kb=3.8x10exp-10 thanks answer should be pH=2.85
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution? the dissociation constant Ka of HA is 5.66x10^-7
what is the frequency of the photons emitted by hydrogen atoms when they undergo transistions from n=5 to n=3
What is the concentration of [Cl?] in a solution of 10 mL of 12 M HCl when 6 mL of water is added
Diethyl ether has a H°vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0°C. What is its vapor pressure at 85.0°C?
The electrode of a pH meter is placed in a sample of urine and a reading of 7.9 is obtained. Is the sample acidic basic, or neutral? What is the concentration of H3O+ in the urine sample?
Semiconductors, such as silicon, are the heart of the circuits that form the basis for computers and other electronics. These materials are characterized by a gap in the energy
If 393.5 kJ of heat is released per mole of graphite and T increases 2.613 K, what is the heat capacity of the bomb calorimeter
The observed rotation of a solution of 1.3 g of a compound in 10 mL of water is +3.7 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound
What mass of NaOH is needed to precipitate the Cd2+ ions from 68.0 mL of 0.500 M Cd(NO3)2 solution?
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask? 6A(g) + 2B(g) %u2192 2A3B(g)
If a typical antacid tablet contains 2.0 g of sodium hydrogen carbonate, how many moles of carbon dioxide should one tablet yield? 0.024 moles per tablet
What mass of carbon monoxide in grams is present in a room measuring 10.5 × 11.0 × 20.5 ft?
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