How could you use a precipitation reaction to separate
How could you use a precipitation reaction to separate the two metal ions? Assume that you have an aqueous solution of CuCl2and BaCl2.
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To make 31.90 mL of solution a 0.6370-g sample of impure Ca (OH)2 is dissolved in the enough water. 20.00 mL of the resulting solution is then titrated with the 0.2593-M HCl.
Discuss how is a particular wave length at which to make the absorbance measurements chosen? How can determine the oxidation number of Co in the complex ion [Co(en)2Br2]+?
Suppose that the Electrical Engineering firm requires the new equipment van which costs $15000 today. How much it will cost if they delay buying van for 9 months, and if price goes up at the rate of 1.5% per month?
The rate of the reaction if found to be directly proportional to the concentrations of H,+ benzaldehyde and MnO4. Benzaldehyde (C6H5CHO) is oxidized to benzoic acid by potassium permanganate in acid medium.
The porphyry in molecule has 26 π electrons. Many proteins contain metal porphyry in molecules. This molecule is planar, and so we can approximate the π electrons as being confined inside a square with sides of length of L.
If the tunneling current is to be decreased by a factor of 3, determine how much farther away must the tip be moved from the sample?
Discuss how much we should decrease the pressure if we want to boil ethanol at the 298K in a distillation when the regular boiling point of clean ethanol is 78.3oC. At this temperature it has been found that Δvap H=38.9kJ/mol.
Determine the buffer capacity of a solution that is 0.10 M in sodium acetate and 0.10 M in acetic acid? Buffer capacity is defined as the number of moles of a strong acid or strong base that are required to change the pH of one liter of th
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