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Problem- 1) What is the solubility of lead chloride (PbCl2) in 0.505 M NaCl (aq)? The Ksp of PbCl2 = 2.4 x 10-4.
2) If 0.20 M NaOH was added dropwise to a solution containing 0.35 M Ca(NO3)2 and 0.50 M Fe(NO3)2, which would precipitate first, Ca(OH)2 or Fe(OH)2 ? The Ksp of Ca(OH)2 = 8 x 10-6 and the Ksp of Fe(OH)2 = 1.6 x 10-14. Justify your answer by giving the maximum hydroxide concentration for both Ca2+ and Fe2+ before precipitation would begin. Be sure to show your work.
Illustrate all work utilize additional paper if required.
what is the mechanism of how sodium hydroxide reacts with ester (lard) to form cardoxylic acid soap
1.how many significant digits can be obtained from this instrument?2. what is the appearance of the flame when the air
Write the electron configuration for the ground states and the valence states of Be, B, C and N atoms so that each one can form the maximum number of 2c-2c (ordinary electron-pair) bonds.
50 mL of 0.15 M Tris hydrochloride, a weak acid with a pKa of 8.01, was titrated with 70 mL of 0.010 M sodium hydroxide. What was the resulting pH of the solution
the total volume of hydrogen gas needed to fill the hindenburg was 2.0x108 l at 1.0 atm and 25degc. how much heat was
Give a set of variables that is sufficient to specify the thermodynamic state a homogeneous pure substance
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it the pH of a strong acid solution nearer to O and a strong base to 14 while a weak adis and base are closer to there perspective approach to 7?
Problem- A solution of H2SO4 with a molal concentration of 1.94m has a density of 1.119g/mL. What is the molar concentration of this solution
At what temperature would the population of the first rotational level of HCl be 1/e times the population of the ground state? Rotational constant for HCl, B, is equal to 10.59 cm-1.
Cyclo-butadiene,C4H4, has a delocalized pi system. Write out the Huckel secular determinant equation for cyclo-butadiene.
What is the pH of 0.346 M diethylammonium bromide, (C2H5)2NH2Br. The Kb of diethylamine, (C2H5)2NH, is 6.9 x 10-4
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