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Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0197 M solution. The pH of the resulting solution is 6.08. Calculate the Ka for the acid.
Rewrite your answer from the stating and prove each step carefully
Presume that in a certain semiconductor the ratio of electronic mobility, µe, to hole mobility, µh, is equal to 10, the density of holes is Nh=1020 m-3, as well as the density of electrons is Ne=10-19 m-3. The measured conductivity is 0.455 ohm-1...
if 60.2 grams of hg combines completely with 24.0 grams br to form a compound what is the percent composition of hg in
A patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25 mg of drug per mL of solution. How many mL of the drug should the patient receive?
A reaction takes place with a mass defect (lost mass) of 0.030kg. How much energy does the correspond to?
At 20 degree celcius, how many dissociated H+ ions are there in 167ml of an aqueous solution whose ph is 12.17? and At 25 degree celcius, how many dissociated H+ ion
Solution prepared adding 50 mL HCl and 20 mL HNO3 to 300 mL water. More water added until final volume is 1.00 L. Calculate [H+], [OH-], and pH for solution.
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.75 M B(aq) with 0.75 M HCl(aq).
time 0.0.184200.0.129500.0.069800.0.0311200.0.0191500.0.016what is the insataneous rate at
Calculate the change in temperature for 1.30 g of CaCl2 dissolved in 25.0mL of H2O. Assume that the calorimeter absorbs no heat. (ie C cal=0)
The iron content of iron ore can be determined by titration with standard KMnO4 solution. The iron ore is dissolved in excess HCl and the iron reduced to Fe+2 ions. This solution is then titrated with KMnO4 solution, producing Fe+3 and Mn+2 in aci..
Indicate whether or not, each has a fixed shape or fixed volume. In addition, include their relative kinetic energies. Pictures can be drawn to assist in the explanation.
During a fire, it was expected by the fire department report that the tank temperature rose to 365 degrees Fahrenheit. Find out the pressure of the oxygen gas in the tank during the fire.
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