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The flask illustrate here contains 10.0mL of HCl as well as a few drops of phenolphthalein indicator. The buret contains 0.130 M NaOH.
Explain what volume of NaOH is required to reach the end point of the titration?
Explain what was the initial concentration of HCl?
Find the pH during the titration of 20.00 mL of 0.1350 M benzoic acid, C6H5COOH (Ka = 6.3 multiplied by 10-5), with 0.1350 M NaOH solution after the following additions of titrant.
Compute a wavelength of the yellow light emitted by a sodium lamp if the frequency of the radiation is 5.10*10^-14hz
two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses
craw the skeletal structure where each atom obeys theoctetduet rule and no atom possesses a formal charge for
A solution of 0.25 mol HF diluted to 1.0L has a hydronium ion concentration of 1.3 x 10-2 M. What is the percent ionization of HF
find the molecular weight of a gaseous compound if the density is 12.24 g/L, the pressure is 900 torr, and the temperature is 47 degrees celcius.
an electric power station annually burns 3.3 107 kg of coal containing 1.4 percent sulfur by mass. calculate the volume
The falling down of a piece of chalk (when the hand holding it is taken off) is an energy-controlled process, because there is no change in its entropy in the process.
Chlorine dioxide gas is used as a commercial bleaching agent. One method of preparing ClO2 is the reactiong of chlorine gas with sodium chlorite as:
Calculate the theoretical yield in grams of the precipitate formed. 3. If the actual yield of the experiment was 90.5 mg, what is the % yield of Ag3PO4
What is the mechanism for the reaction between acetophenone and p-anisaldehyde is the presence of sodium hydroxide. Include arrows showing electron movement. The product is trans-p-Anisalacetophenone.
Calculate the decomposition for this process at constant pressure and 25o C: CaCO3(s) = CaO(s) + CO2
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