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Assume that 29.0 mL of a 0.10 M solution of a weak base B that accepts one proton is titrated with a 0.10 M solution of the monoprotic strong acid HX.
How many moles of HX have been added at the equivalence point?
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
Pretend you started with 3.15 g of Panacetin, and you isolated 822 mg of sucrose. What is the percent composition of sucrose in Panacetin?
performed using 1.8912g of zinc and 1.5965g of iodine. Determine the limiting reactant and calculate the theoretical yield of zinc iodine in grams.
The water is brought to the vapor state at 300 degrees celsius and 1,500 kPa, where its internal energy is 2,784.4 kJ/kg and its specific volume is 169.7 cm3/g. Calculate delta U and delta H for the process.
A sample of granite contains various oxides of silicon, aluminum, sodium, potassium, calcium, and iron. Each of these oxides gives the granite a coarse-grained texture.
Copper metal is dipped into a 0.01M silver nitrate solution. Calculate the concentration of silver ions in the final equilibrium solution.
The initial rates at various substrate concentrations for an enzyme-catalyzed reaction are as follows. [S]/M.............Vo/10^-6 M/min 2.5x10^-5.......38.0 4x10^-5.........53.4 6x10^-5.........68.6 8x10^-5.........80.0 16x10^-5.......106.8 20x10^..
a metal object with a mass of 19g is heated to 96 degree celcious then transferred to acalorimeter containing 75g of
Given 174 mL of a buffer solution that is 0.23 M formic acid and 0.28 M sodium formate, calculate the pH of this solution after the addition of 1.93 mL of 5.2 M sodium hydroxide. The Ka of formic acid is 1.8x10-4
Calculate the pH of the 0.20 M NH3/0.24 M NH4Cl buffer. B)What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl to 55.0 mL of the buffer?
The radioactive decay of radon follows first-order kinetics and has a half-life of 3.823 days. How many grams of radon will remain after 12.00 days if the sample initially had a mass of 455 g?
A 2kg sample of lead is heated from a temperature of 30 degrees celsius to a temperature of 60 degrees celcius. The specific heat of lead is 128 J/kg degrees celsius. How much heat energy di this sample absorb?
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