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Two solutions of an unknown slightly soluble salt, A(OH)2, were allowed to equilibriate- one at 25 degrees C, the other at 80 degrees C. A 15 mL aliquot of each solution is tiotrated with .200 M HCl. 8 mL of the acid is required to reach the endpoint of the titration at 25 degrees C, while 69.15 mL are required for the 80 degrees C solution.
1) Calculate the Kspa+ at 25 degrres C.2) Calculate the Ksp at 80 degrees C.
Consider the reaction between 15.0 mL of a 1.00 M aqueous solution of AgNO3 and 10.0 mL of a 1.00 M aqueous solution of K2CrO4. When these react, a precipitate is observed. What is present in solution after the reaction is complete? Note: the sol..
What volumes of the 0.10 M HA and 0.10 M NaA solution should be mixed to prepare the buffer?
You need to make a 500 mL buffer containing 35 mM NaCl and 50 mM Tris buffer. You already have a 5 M NaCl stock solution and a 1 M
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What range of accelerating voltages would be required to cover the mass range between 16 and 625, for singly charged ions, if the field strength is held constant?
A mouse is placed in a sealed chamber with air at 760.0 torr. This chamber is equipped with enough solid KOH to absorb any CO2 and H2O produced by the mouse
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Balance the following skeleton reaction and include states of all reactants and products in your balanced equation.
when 0.198 g of KHP is tritated with NaOH it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.
A solution is prepared by dissolving 13.4 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 12.00 mL sample of this stock solution is added to 57.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
Determine the volume of sulfuric acid solution needed to prepare 37.4 g of aluminum sulfate, Al2(SO4)3, by the following reaction 2Al(s)+3H2SO4 (aq)= Al2(SO4)3 (aq) +3H2 (g)
Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 103kJ of heat?
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