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Write the half reactions and the overall cell reaction for each of the following voltaic cells: a)Al(s)/Al^3+(aq)//Cd^2+(aq)/Cd(s) b)Sn(s)/Sn^2+(aq)//Fe^3+(aq),Fe^2+(aq)/C (graphite)
A 250 gram sample of water at the boiling point had 45.0 kJ of heat added. How many grams of water were vaporized? Heat of vaporization for water is 40.6 kJ/mole
Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain polyamide of approximately 15000 molecular
Ethane is burned with 20% excess air in a furnace operating at a pressure of 100 kPa. Assume complete combustion occurs.
Describe in detail the symptoms of this blood disorder. Explain the difference in the cells of this girl and a person who does not suffer from the disorder.
A solution of water (1.86) and glucose freezes at 3.95. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
In what direction do the functions point? What orbitals are"left" unused on the C atom?
A Cr^{3 + } aq solution is electrolyzed, using a current of 7.50 A}. What mass of Cr}( s) is plated out after 1.80 days? also What amperage is required to plate out 0.300 mol Cr from a Cr^{3 + } solution in a period of 7.20 h
A brand new amino acid was recently discovered "calline" it is 3 ionizable groups with pka values of 2.3, 4.7
What is the buffer component ratio, ([CH3COO-]/[CH3COOH]) of an acetate buffer
2121g sample of an organic compound was burned in a stream of oxygen adn the CO2 produced was collected in a solution of barium hydroxide. Calculate the percentage of carbon in the sample if .6006 g of BaCO3 was formed
Calculate the entropy change associated with the isothermal expansion of 5.40 mol of ideal gas atoms
How much of a 12.0 M HNO3 solution should you use to make 850.0 ml of a 0.250M HNO3 soution? C) How much of a 5.0 M sucrose solution should you use to make 85.0 ml of a 0.040 M solution?
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