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A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. What is the pH of the solution when 5.0 ml more of NaOH is added in the titration.
Assuming that teh F-18 can be transported at 58.0 miles/hour, how close must the hospital be to the cyclotron if 63% of the F-18 produced is to make it to the hospital
An experiment shows that a 115 mL gas sample has a mass of 0.170 g at a pressure of 711 mm Hg and a temperature of 33 Celcius. What is the molar mass?
Which of the solids below should display the lowest melting point? a)Al2O3 b)NaF c)C6H12O6 d)CsI e)C12H22O11
Suggest to her a visual functional test that she can use to detect the presence of an alkene. Explain why it is specific for alkenes in this situation.
Calculate (in kJ) the standard enthalpy change ?Hº for the reaction written below, using the bond energies given
barium hydroxide solution PH = 10.5 is needed. How many grams of Barium hydroxide are needed
Rex Ryan mixed peroxide with yeast to generate oxygen gas and collected the gas in a graduated cylinder, using the same set up as was used in Experiment 11. He collected the following data
Which is predicted to be the most ionic substance? a) NiS b) CuI c) CoO d) NaBr
V is the volume, and n is a number that can be 1, 2, 3, ... . Assume that A=1. Determine the work done by the piston. Propose a physical meaning to the term "n" in the above equation.
Mendeleev ordered the elements in his version of the periodic table on the basis of atomic masses instead of their atomic numbers. why
How many grams of dry NH4Cl need to be added to 1.80L of a 0.400M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.90? Kb for ammonia is 1.8*10^-5.
Rank the following compounds in order of reactivity toward nitration with HNO3
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