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Explain what is the fraction of association (?) for the subsequent potassium propionate solutions? Ignore activities. The Ka of propanoic acid is 1.34 × 10-5.
(a) 5.00 × 10-1 M K(C2H5CO2)
(b) 5.00 × 10-2 M K(C2H5CO2)
Mass of an empty graduated cylinder:27.3g. mass of cylinder and 10.0 ml of liquid x: 35.2g. Calculate the experimental density of liquid x
19.32 mL of .500 M NaOH solution is required to exactly neutralize a 10.00mL sample of vinegar. Assuming that all acidity of vinegar is attributable to acetic acid(HC2H3O2) what is the percent by weight of acetic acid in vinegar
Torsional strain resulting from eclipsed C!H bonds is approximately 4.2 kJ (1.0 kcal)/ mol, and that for eclipsed C!H and C!CH3 bonds is approximately 6.3 kJ (1.5 kcal)/ mol. Given this information, sketch a graph of energy versus dihedral angle f..
how many atoms of copper are there in this wire?
What is the pH of a solution formed by dissolving 0.100 mol of an acid with a Ka of 1.750x(10 to the -5th) and 0.200 mol of the sodium salt of the same acid in a total volume of 1.000L
if molarity of a 2000ml solution is 4.0M NaCl, how many moles of NaCl are dissolved in that solution.
a solution contains 50.0g of heptane c7h16and 50.0g of octane c8h18 at 25 degrees c.the vapor pressures of pure heptane
A 130 mL stock solution contains 1.5 M CuF2. When 11 mL of the stock solution is diluted to 23 mL, what will the concentration of F- ions be?
How would you prepare a sodium phosphate at pH 7. What species would you use, what concentrations. Remember phosphoric acid has three pKas
What is the molecular weight of a volatile liquid, if .50 g of the liquid fills a 100 mL flask as a gas at 25 degrees C and 1.0 atm pressure
what polymer is made from the monomer vinylidene chloride
How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above. How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above
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