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At what point during a titration of a weak acid with a strong base does the pH = pKa? What ratio would cause pH > pKa & pH <pKa
When the ratio of [HA]:[A-] = 2
When the ratio of [HA]:[A-] = 1
When the ratio of [HA]:[A-] = 0.
When the ratio of [HA]:[A-] = 0.5
Suppose you have 5.00 g of powdered magnesium metal, 1.00 L of 2.00 M potassium nitrate solution, and 1.00 L of 2.00 M silver nitrate solution. (a) Which one of the solutions will react with the magnesium powder?
How do I find the delta H for the neutralization reaction given: HCl+NaOH-->H2O+NaCl using 0.05L of .5M HCl 0.055L of .5M NaOH Delta T=3.4Kelvin moles of H2O formed=.025moles of H2O
What metal ions are involved in electron transport, and what is special about them that enable electrons to be shuttled among the various proteins
What is the empirical formula of the compound if a 5.56 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion producing 12.64 mg of CO2 and 5.16 mg of H2O
Silver chloride, AgCl, is a sparingly soluble solid. Answer the following questions about a saturated solution prepared by placing solid silver chloride in a 3.49 10-5 M NaCl(aq) solution
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.030 M Na2SO4 at 36,000 units?
the standard enthalpy change for the reaction 2hgl o2g 2hgosis -211kjwhat is the standard enthalpy formation of
period of periodic table,there are atom with a negative electron affinity identify of these atoms and explain why the electron affinity is negative.?
For a reaction that follows the general rate law, Rate=k[A][B]^2, what will happen to the rate of reaction if the concentration of B is increased by a factor of 3.00
The density of helium is .01784g/l at S.T.P. I a given mass of helium at S.T.P is allowed to expand to 1.500 times its inital volume bu changing the temperature and pressure,
An aqueous solution is prepared from 40.0 g of lithium fluoride "LiF" (a nonvolatile ionizable electrolyte) in 200.0 g of water. Given Kb water = 0.52oC/m and the van't Hoff factor of this lithium fluoride solution = 1.20, the boiling point elevat..
What will the pH be after 0.0100 mol of NaOH is added to the solution? Ka for HNO2 = 4.5x10^-4
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