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What is the pH of the solution in the cathode compartment of the following cell if the measured cell potential at 25 degrees C is 0.51V
If a first-order reaction has a rate constant of 2.11x 10-1s-1 at a temperature of 22.3°C, what would the value of k be if the reaction temperature was changed to 65.7°C given
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC
What is the solubility of CuCL in solution with 2.0 M NaCl. equilibrium constant for CuCL2- = 7.9 x 10^4
Why does the color of a precipitate change from the color of the original solution. For example, if copper sulfate is blue, why is it's precipitate white
Draw one energy diagram showing both reaction pathways & label all transition states, intermediates and products as well as activation energies. you may assume that the overall reactions are both exergonic while the first step in each reaction is ..
The half-life for the radioactive decay of is 5730 years. How long will it take for 20% of the atoms in a sample of to decay. If a sample of initially contains 1.1 of , how many millimoles will be left after 2285 years
You are an EH&S professional returning home from your plant on a summer Friday afternoon at about 4 p.m. You have just picked up some materials from a nearby building supply store for a weekend backyard project
Calculate the volume of 0.07216 M AgNO3 needed to react exactly with 0.3572 g of pure Na2Co3 to
Which is the electrophilic site in the following compounds. A. CH3Cl B.H3C-O-CH3 with two lone pairs around O C. BH3. What is the nucleophilic site in each of the following molecules.
The recommended adult dose of Elixophyllin, is 6.0 mg/kg of body mass. calculate the dose in milligrams for a 120 lb person.
two mwthods were described for determining the volume of the flask used for the molar mass determination.
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2.
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