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The titration of a 0.1000 M HOCl (hypochlorous acid) is done using 0.1003 M NaOH. If a 25.00 mL aliquot of acid is used, determine the volume of NaOH required to reach the equivalence point, and then determine the half equivalence point volume. The Ka for hypochlorous acid is 3.5 x 10^-8.
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 24.0 L
If 18.8 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia
A strip of aluminium of mass 42.7g is dropped into a beaker of dilute hydrochloric acid. Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 24oC ) by the evolution of hydrogen in the subsequent reaction
The molar heat of fusion of water is 6.02 KJ/mol. Calculate the energy required to melt 16.6g of water.
What volume (in liters) of 1.04 M KOH solution should be added to a 0.090 L solution containing 9.3 g of glutamic acid hydrochloride (Glu, FW=183.59; pKa1=2.23, pKa2 =4.42, pKa3=9.95) to get to pH 9.90?
What is the molarity of ZnCl2 that forms when 30.0 grams of zinc completely reacts with CuCl according to the following reaction? Assume a final volume of 275.
What is the concentration of an HCl solution if for 50.0 mL of HCl it took 55.1 mL of 0.0875 M NaOH to completely neutralize it.
nickel acetate in a volumetric flask and add water to a total volume of 375 mL What is the concentration of the nickel cation? What is the concentration of the acetate anion?
How does boiling point relate to freezing in this scenario. would the same one with the higher bioling point also have a lower freezing point. why
To what final volume should you dilute 60.0mL of a 5.40M KI solution so that 40.0mL of the diluted solution contains 3.75g of KI
What is the wavelength of a light ray if its frequency is 4.64 x 1014 s-1? answer in units of nanometers (nm).
MgNH4PO4.6H2O loses H2O stepwise as it is heated. Between 40c and 60 the monohydrate is formed, and above 100 celcius the anhydrous material is formed.What are the phosphorus percentage of the monohydrate and of the anhydrate material?
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