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At 25 degrees C, what are the molar H3O+ and OH- concentrations in (e) 0.200 M NaOCl? (f) 0.0860 M CH3CH2COONa?
The reaction of alicylic acid with a catalytic amount of sulfuric acid and excess methanol is an example of a fischer esterification. Why was the reaction heated to reflux instead of leaving it at room temp?
A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode immersed in an NaCl solution, with Cl2 gas bubbled around the electrode. The two beakers are connected with a sa..
As a technician in a large pharmaceutical research firm, you need to produce 400 mL of 1.00 M potassium phosphate buffer solution of pH = 7.29. The pKa of H_2PO_4^- is 7.21.
Simplest and most informative way to characterize a carboxylic acid is to determine its neutralization equivalent. The number of carboxyl group in the molecule of the following compound is 1.
what is the percent by mass of a solution on made by dissolving 163 grams of table sugar in 755 grams of water.
Explain What would be the effect on your calculated mass percent recovery Cu if you used all your NaOH solution in part ll and the litmus paper never turned blue
Assuming this particle is a single crystal, how many unit cells are lined up across the diameter of the particle? d. Calculate the mass of the particle. e. Approximately how many atoms does this particle contain?
For a copper zinc cell of sulfate concentration 1M the potential is see to be 1.10 volts. Calculate the potential of the cell at room temperature if the concentrate of zinc sulfate is 1.2 M and the concentrate of copper sulfate is 0.0012 M.
The vapor pressure of water at 20°C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 × 102 g of sucrose (C12H22O11, molar mass = 342 g/mol) and 3.50 × 102 g water? 1. 0.51 mmHg 2. 16.0 mmHg 3. 17.0 mmHg 4. 18.0 ..
A student added calcium ion, ca2+ to an aqueous solution and observed formation of a precipitate. Addition of HNO3 had no effect on the precipitate. What anion wa present in the original solution? Explain your answer
the ternary compounds called chlorofluorocarbons, or Freons, have proved to be very valuable as refrigerants and as cleaning agents for circuit boards. Unfortunately, in the atmosphere these compounds produce chlorine atoms that catalyze the decom..
Draw the molecular orbital diagram for the acetylide anion (C22-). Assume that order of the n=2 molecular orbitals in increasing energy is
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