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Write balanced half-cell reactions for CH2O oxidation and SO4 reduction to HS and then add them together to get the balanced overall redox reaction.
The compound AX2 decomposes according to the equation, 2 AX2(g) => 2 AX(g) + X2(g). In one experiment, [AX2] was measured at various times, and these data recorded
How many liters of H2 at 23.0C and 733mm Hg are released when 1.98g of Na reacts with unlimited water?
Use values of Ksp and Kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3 M OH-. Ksp Cu(OH)2 = 1.3*10^-20 and Kf Cu(OH)42- = 1.3*10^16
At its boiling point, the vaporization of 0.579 mol CH4 requires 4.76 kJ of heat. What is the enthalpy of vaporizating of methane?
Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C).
A stock solution of 1.24 x 10^-4 M dye is available in the lab. What volume of the stock solution must be transferred to a volumetric flask to prepare a 25.00 mL dilution with a concentration of 2.00 x 10^-5 M
solution has an osmotic pressure of 3.80torr at 35?C. What is the molar mass of the protein?
The standard Gibbs-free energy of a system is related to its equilibrium constant through the following equation.
What is the concentration of [Br?] in a solution of 15 mL of 5 M HBr when 5 mL of water is added?
A strain of bacteria has been isolated that can cometabolize tetrachloroethane
How many amps are required to produce 72.5 g of potassium metal from a sample of molten potassium chloride
Draw the skeletal structure of the major organic product produced when 2-methylpropanoyl chloride reacts with 3-methylbutanoic acid
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