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Problem- What molarity of propanoic acid, C3H6O2 (Ka = 1.3 x 10-5), is required to produce an aqueous solution with pH = 2.40?
As much detail as probable is really appreciated
Calculate the pH of a solution made up from 2.2 g of potassium hydroxide dissolved in 126 mL of 0.23 M perchloric acid. Assume the change in volume due to adding potassium hydroxide is negligible.
a solution of 1.5 grams of solute dissolved in 25 ml of h2o at25 degrees celsius has a boiling point of 100.45 degrees
Assume an organic compound has a partition coefficient between water and diethyl ether equal to 8.95. If there are initially 7.89 grams of the compound dissolved in 100.0 mL of water, how many grams will remain in the aqueous layer after extractio..
Methyl salicylate (oil of wintergreen) is prepared by heating salicylic acid (C7H6O3) with methanol (CH3OH) C7H6O3 + CH3OH ® C8H8O3 + H2O What is the percent yield if reaction of 8.244 g of salicylic acid with an excess of methanol produced a meas..
In a crazy situation the Oylan Vinegar Company has 10,000 gallons of vinegar with a concentration of .114 M. It also hass a .68% acetic acid by mass
A buffer is composed of 0.400 mol H2PO4^- and 0.400 mol HPO4^2- diluted with water to a volume of 1.00 L. The pH of the buffer is 7.210. How many moles of HCl must be added to decrease the pH to 6.210?
Titration with sodium thiosulfate required the use of 18.94mL of 0.07992M Na;>203' Find the molarity of ascorbic acid in the juice.
How much energy is required to vaporize 158g of butane (C4H10) at its boiling point, if it has Hvap is 24.3kJ/mil
1.the aquous solution of sodium bromide has the molality of 2.50m and the molar mass was found 102.9 gmol then compute
Describe complexation in terms of the Lewis acid-base theory, crystal field theory, and valence bond thoery
A wildlife biologist is interested in testing the pH of the water in a lake. He obtains a 200. mL sample of the water and titrates this sample with a .050 M NaOH solution.
1.42 g h2 is allowed to react with 9.88g n2 producing 2.19g nh3 what is the theoretical yield for this reaction under
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