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Use the values from the table of reduction potentials on the last page to determine ?Gº and Keq for the reaction as listed below. Pb (s) + Sn2+ (aq) ? Pb2+ (aq) + Sn (s) ?Gº = __________ kJ Keq = __________
A 13.7g sample of an unknown gas occupies 15.5L at a temperature of 17 CELSIUS and a pressure of 743 mmHg. What is the molar mass of the gas
although even more strained than cyclopro-panone, is nevertheless quite stable and can even be distilled. Explain, taking the polarity of the carbonyl group into account.
A mixture of copper(II) sulfate pentahydrate (249.70 g/mol) and magnesium sulfate heptahydrate (246.49 g/mol) is heated until all the water is lost. The weight of the initial mixture is 5.020 g, and the weight of the resulting anydrous compounds i..
the advantages and disadvantages of using methanol, ethanol and water as a solvent for reactions with sodium borohydride?
what are the electronic configurations of Pb and Pb2+, also Mo and Mo2+. please explain what are their valence electrons.
A thermometer indicates that water freezes at 0.5 degrees Celsius and boils at 100.2 degrees Celsius at a barometric pressure of 760 torr. The observed freezing point of an unknown liquid is -1.3 degrees Celsius.
An ideal gas is compressed isothermally from 2.0 atm and 2.0 L to 4.0 atm and 1.0 L. Calculate the values of delta U and delta H is the process is carried out a) reversibly and b) irreversibly
A 0.1019g portion of an aspirin tablet was dissolved in sufficient water to prepare 1.000L of solution. A pipet was used to transfer 10 mL of the solution to a 100 mL volumetric flask. A 2 mL portion of 4 M NaOH (aq) was added to the flask, and th..
A second sample of this acid weighing 2.00 grams is added to the titrated sample and the pH is 4.32. Calculate the molar mass of the unknown acid and determine the value of Ka for this acid.
determine the freezing point depression, delta Tf, for the ionic solution. b. determine m effective for ionic solution. c. determine the van't Hoff factor, i, for the ionic compound.
A 200 MHz proton NMR instrument is used to obtain a ^13C spectrum. calculate the energy difference that will develop between teh two spin states of the ^13C nuclei.
Describe how to prepare 0.200 L of 0.450 M HCl solution, starting with a 2.00 M HCl solution. What volume (in L) of the 2.00 M solution
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