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A solution of HCl with unknown concentration was titrated with 0.230 M NaOH. If a 105.0 ml sample of HCl requires exactly 8.00 mL of NaOH to reach equivalence point, what is the pH of HCl?
A container with a removable partition contains gas A and gas B. Gas A is at 400K and 10.0 atm and gas B is at 400K and 4.00 atm. The partition is removed and the gases mix
What is the pH of a buffer that results when .50 mole of H3PO4 is mixed with .75 mole of NaOH and diluted with water to 1.00 L . The Ka1 is 7.5*10^-3, Ka2=6.2*10^-8 and Ka3*10^-13. Why is 6.2 *10^-8 used
cadmium ion in solution is analyzed by precipitation as the sulfide a yellow compound used as a pigment in everything
1. when performing a friedel-crafts alkylation reaction not only does one have the problemsnbspof multiple alkylation
The freezing point of a solution of acetic acid and water is -0.278C. What is the molality of the solution
the addition of aqueous ammonia to the cathode compartment of the cell described below reduces the cell potential.
What is the composition in mole fractions of a solution of benzene and toluene that has a vapor pressure of 35 torr at 20 °C? Assume the mixture forms an ideal solution.
In the following unbalanced reaction, what is the total decrease in oxidation number for the reduced element?
A certain number of sodium ion lattice points and a certain number of chloride ion lattice points are required. How many chloride ion lattice points are in the unit cell as described above?
To see the affect on W when n > N/2, calculate W for N = 20 and n = 9 and 11. Is the result at all surprising? Why? Can you explain why you get this result? What other choices of n would give similar results?
Explain the structure of a water molecule and how hydrogen bonding leads to some of its very special properties. Be sure to include how these properties are important to life on Earth.
Gold (Au) crystallizes in a cubic close-packed structure (the face-centered cubic unit cell) and has a density of 19.3 g/cm3. Calculate the atomic radius of gold in picometers.
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