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We place 0.123 mol of a weak acid, HA, in enough water to produce 1.00 L of solution. The final pH of the solution is 1.27 . Calculate the ionization contant, Ka, of HA.
We place 0.647 mol of a weak acid, HA, and 11.0 g of NaOH in enough water to produce 1.00 L of solution. The final pH of this solution is 4.56 . Calculate the ionization constant, Ka, of HA.
Calculate the molarity of sodium sulfate in a solution prepared by mixing 35 mL of 0.15 M sulfuric acid with 15 mL of 0.85 M sodium hydroxide.
What is the relationship between the trend in ionization energy and the trend in atomic radius? Why does this relationship exist?
Why is direct nucleophilic substitution a poor method for preparing secondary and tertiary amines from primary amines
Determine the percent by mass of calcium carbonate in the sample
Define if we assume that the voltage declines linearly as current are withdrawn, educated guess the total maximum electrical work the battery could carry out during discharge
explain the steriochemisty of gyceraldehyde and glycerol give reasons for absence of anomeric forms in sucrose.1. in
Calculate the mass of pure silver that when heated from 12.0 degrees celcius to 15.2 degrees celcius it required 1.25 kj of energy
What is the maximum kinetic energy of a photoelectron ejected fromcesium by 555 nm light? Note that if the wavelength of light usedto irradiate the cesium surface becomes longer than 660 nm
a brick has a mass of 4.0kg and the earth has a mass of 6.01027g.be sure your answers have the correct number of
Siver nitrate is sadded to a solution containing an unknown salt. An off-white colored precipitate forms. Nitric acid is added to the mixture, the precipitate dissolves and a gas is given off. What is the anion present: Cl-, Br-, I-, PO4 3-, SO4 2..
A gas cylinder at a pressure of 5.80 atm contains both helium and oxygen. The helium is at a pressure of 2.35 atm. What is partial pressure of oxygen?
If 25.0 ml of 0.150 M Ba(OH)2 is required to react completely with 45.0 ml HCl solution, what is the molarity of the HCl(aq)
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