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Vinegar is a 5.0% solution by weight of acetic acid (ch3co2h)in water. given that the ph for acetic acid is 2.41, the ka=1.8X10-5 and assuming the density of vinegar to be 1.00g/cm3, what is the percent dissociation for acetic acid in vinegar?
If the concentration of H2 in the equilibrium mixture is 0.426 M, what mass of methanol was initially introduced into the vessel?
A 247-ln fullback runs the 40-yd dash at a speed of 19.99 +/- 0.10 mi/h and has a wavelength of 7.79E-37. What is the uncertainty in his position based on the de Broglie wavelength
The size of a diamond is measured in carats. (1 carat=.200 g) The density is 3.51 g/cm3. How many carats is a diamond that measures .
Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. Which do you think will be the major product? Explain your reasoning
How much heat is required to vaporize 18.5g of water at 100c. The heat of vaporization of water at 100c is 40.7kj/mole.
A buffer solution contains .20 M aniline (C6H5NH2 Kb= 3.9 *10^-10) and .20 M anilinium chloride (C6H5NH3^+) Cl^-. What is the pH of this solution
Write an expression for the quantity 506000 cm in which it is clear that all the zeros are significant.
Starting with 2.70 x 10^22 atoms of Tl-206, calculate the number of such atoms left after 28.5 min.
Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K.
Patients with a high body temperature are often given "alcohol baths." The heat of vaporization of isopropyl alcohol (rubbing alcohol) is 159 cal/g. How much heat is removed from the skin by the evaporation of 190g about 1/2 cup) of isopropyl alco..
Then 2.00 mL of solution containing 0.0156 M dopamine was mixed with 90.0 mL of unknown, and the mixture was diluted to 100.0 mL in volumetric flask. The signal from the new solution was 58.4 nA. What is the dopamine concentration in the unknown s..
Calculate the mass percent of a solution that is prepared by adding 64.4 g of NaOH to 485 g of H2O
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