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How many grams of sodium lactate (NaC3H5O3) should be added to 1.00 L of 0.260 M lactic acid (HC3H5O3) to form a buffer solution with pH 2.90? Assume that no volume change occurs when the NaC3H5O3 is added.
Suppose that one needs 17.65mL of 0.1146M NaOH to titrate 25.00mL of acetic acid, a weak acid, to the equivalent point. Calculate [HAc]
A 20.0 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after the following volumes of acid have been added.
How does the addition of aqueous NH3 to a solution separate and identify Cu2 and Bi3 ions? Why wouldn't the additon of a strong base, such as KOH, work just as well as the addition of aqueous NH3?
An electron spin can adopt either of two orientations in a magnetic field, and its energies are ±?BB, where ?B is the Bohr magneton. Deduce an expression for the partition function and mean energy of the electron and sketch the variation of the fu..
Determine the same activity coefficients for H+ and OH- in the same aqueous MgCl2 solution using the Extended Debye-Huckel law. -log
What masses of NaCl and water are needed to prepare 1000g of a solution that is 0.90% by mass
Given Mo Energy level diagram for diatomic molecules, which of the following molecular ions has a bond order of 3. Why
The masses of the unknown and the solvent (water) were determinded, and the unknown completely dissolved in the water. Just before the jacketed test tube containing the unknown solution was placed in the ice-salt water bath
Is it possible for an atom to absorb a photon of red light and reemit a photon of violet light
At what pressure does the mean free path of argon at 25C become comparable to the size of 1dm^3 vessel that contains it? take ?=.36nm^2
explain how the leaving group leaves and the nucleophile attacks the carbon? What is an example explanation and what do I include in the explanation?
For the following reaction, calculate the concentration of C(aq) at equilibrium when .135M B solution is alllowed to react with A. A(liquid) + B(aq) ---> C(aq) + D(aq)
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