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Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added). The Ka for HOCl is 3.0 x 10-8 M. 2.What is the pH after 11.10 mL of NaOH are added
Determine the volume of sulfuric acid solution needed to prepare 37.4 g of aluminum sulfate, Al2(SO4)3, by the following reaction
Calculate the work done if a gas is compressed from 8.1 L to 3.9 L at constant temperature by a constant pressure of 2.3 atm, and give your answer in units of joules.
"disappeared" from a rock face that is adjacent to a lake (original pH=6.7) with dimensions 100 m x 40 m x 10 m. You think that the "disappearance" is due to leaching of the pyrite into the lake. To prove your point, what would the new pH of the l..
If 3.30ml of vinegar needs 45.0ml of 0.130M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.10qt sample of this vinegar?
To obtain the same antifreeze protection requires 76g of propylene glycol to replace each 62g of ethylene glycol. Calculate the mass of propylene glycol required to replace 7.00gal of ethylene glycol. The density of ethylene glycol is 1.12 .
The CaC2O4.H2O precipitate is not completly air-dried when its mass is deteremined. Will the reported mass of the limiting reactant in the original salt mixture be reported too high or too low? Explain.
An organic sample (3 grams mass) is taken from an archeological site. The sample has a beta emission rate of 4.3 counts per minute. These decays originate predominantly from carbon-14 with a half-life of 8270 years. If the abundance of carbon-14 i..
Explain what happened by using structures and chemical explanation of what did or did not happen.
Using Henry's law, calculate the molar concentration of in the surface water of a mountain lake saturated with air at 20 and an atmospheric pressure of 660 torr.
If 555 g of NaOH is dissolved to a final total volume of 40.0 L, what is the molarity of the solution?
Assuming the structures above gave molecular ion abundances of 12, 70, and 23(dexchlorpheniramine, 9-aminoacridine and pilocarpine, respectively), what abundances would you expect for the M+1 and the M+2 peaks for each structure?
Select the smaller ion in each of the following pairs. using the format [Ca]2+ for Ca2+.
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