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Consider the following reduction potentials:
Cd2+(aq) + 2e- Cd(s); E° = -0.40 V
Pb2+(aq) + 2e- Pb(s); E° = -0.13 V
Cu2+(aq) + 2e- Cu(s); E° = 0.34 V
Br2(l) + 2e- 2Br-(aq); E° = 1.07 V
Under standard-state conditions, which of the following reactions is spontaneous?
the characteristic odor of pineapple is due to ethyl butyrate a compound containing carbon hydrogen and oxygen.
Problem- Calculate the PH of the buffer that results from mixing 60.0ml of 0.250M HCHO2 and 15ml of 0.500M NACHO2
The combustion of SO2(g) has Keq=5.60x10^4 at 350 degrees Celcius. If 0.350bar of SO2(g) and 0.762bar of O2(g) are mixed initially, what are the partial pressures of each of the three gases when the mixture reaches equilibrium? Reaction: SO2(g) + ..
a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.
You have 1.0 liter of .45 M HCLO (aq). At 25 degrees Celsius, Ka= 3.5x10^8 for this acid. Calculate the pH of .45 M HCLO and the concentration of CLO- at equilibrium.
If 50.0mL of NaOH solution is needed to react completely with 0.47-g KHP, Define what is the molarity of the NaOH solution
A flask contains 300mL of 0.12M phosphate buffer that has a pH of 7.2. What volume of 0.2M HCl should be added to drop the pH to 6.7.
gold forms a substitutional solid solution with silver. compute the weight percent of gold that must be added to silver
If the mole fraction of the ethanol in the solution is 0.65, calculate its mole fraction in the vapor phase at this tempature.The vapor pressures of ethanol and 1-propanol are 108mmhg and 40 mmg respectively.
The Wittig reaction involves coupling between a phosphonium ylide and a carbonyl-containing molecule. If a chemist wants to use the Wittig reaction to synthesize 2-methyl-2-butene, which reactants should be used?
What are the electron configurations of the following metal ions: Fe3+, Zr4+ and Co3+. Draw a) the high-spin electron configuration for a complex containing Fe2+ and b) the low- spin electron configuration for a complex containing Fe2+. Assume an ..
The acceptable limit for mercury in drinking water is 2ppb. Does this correspoond to mercury in its elemental form (Hg) or in its ionic form (Hg^2)
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