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Make a schematic diagram of a cell for each of the following cell reactions. Indicate on the diagram the anode, the cathode, the direction in which the anions and cations migrate through the cell and the salt bridge, if any, and the directions in which the electrons migrate through the external circuit. Calculate E° for each cell.
a. Sn + 2Ag^+ --> Sn^2+ + 2Ag
b. 2Cr + 3H2O + 3OCl^- --> 2Cr^3+ + 6OH^-
c. H2 + I2 --> 2H^+ + 2I^-
A sample of zinc weighing 2.077 g is dissolved in 2.00 M HCl. What (minimum) volume of HCl is required to dissolve the Zn? (Zn dissolves in HCl to form Zn2+
What is a fractional distillation how is it different than a simple distillation in principle and in the apparatus used
A 50.0 mL sample of constant-boiling HCl with a concentration of 0.1166 M was collected and titrated to an end point with 37.17 mL of Ba(OH)2 solution. What is the molarity of the Ba(OH)2 solution
Explain in general terms what a reference sample is and what its purpose is in spectrophotometry.
zinc metal reacts with yellow crystals of sulfur in a fiery reaction to produce a white powder of zinc sulfide. a
You have a solution of sodium nitrate containing 140g at 65 degrees Celsius. Is the solution saturated, unsaturated, or supersaturated.
What is the reduction half-reaction for the following overall cell reaction? Pb 2+(aq) + 2 Ag(s) ? Pb(s) + 2 Ag+(aq) Choose one: Pb 2+(aq) + 2 e- ? Pb(s) Ag(s) + e- ? Ag+(aq) Pb 2+(aq) + e- ? Pb(s) Ag+(aq) + e- ? Ag(s)
Reaction of an Alcohol to Produce an Alkyl Halide, N-butanol reacts with NaBr and H2SO4 to produce n-butyl bromide, via refluxation reaction in a lab experiment.
Describe synaptic tagging and capture in LTP. What kind of stimulus is necessary for new protein synthesis to occur? What kind of stimulus is necessary for a synaptic tag
How many Joules of energy are stored in 1 pound (454 g) of sucrose? (Assume: Pressure = 1 atm, Temperature = 25°C; the respective ?Hf° for the reactants and products can be found in the thermodynamic table linked above. Show your calculation
Powdered coal ( essentially pure C ) is reacted with excess water to make a mixture of CO,CO2 and H2 The reaction is desired reaction ,CO2 is an undesired waste product. This gas mixture from the reactions of coal with water is further reacted ove..
Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates b) Rank the primary halide in order of increasing reactivity toward SN2
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