Calculate the ionization constant of the acid
A 0.041 M solution of a monoprotic acid is 12 percent ionized. Calculate the ionization constant of the acid.
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A 0.264-gram sample of an amino acid was dissolved in 95.0mL of water and titrated with 0.105M NaOH. The first equivalence point was found at V(OH)=16.3mL. What is the molar mass of the amino acid titrated?
An aqueous solution contains 4.90% NH3 (ammonia) by mass. The density of the aqueous ammonia is 0.979 g/mL. What is the molarity of NH3 in the solution?
Which of the following statements most accurately characterizes the American political system before the 1820s? It was democratic.Local notables dominated it by managing local elections through devices such as loaning money and treating workers or
Rubidium-87 decays by beta decay with a half-life of 4.9 x 10^10 yr. How many 87Rb atoms are in a moon rock sample that has a rubidium decay rate of 3500 disintegrations per hour.
There is a region of magnetic field. from a centre point from it there are 2 semi infinite wire making some angle the region is having rdius r. what will be the magnetic field intensity at that centre point?
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Two 2.00L flasks, one of which contains 0.250 mole O2 gas at 50.0 deg C. In which flask is the ratio of molecular volume to sample volume greater?
Many cigarette lighters contain liquid butane)Using enthalpies of formation, calculate the quantity of heat produced when 3.80 g of butane is completely combusted in air under standard conditions.
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