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Use the tabulated half-cell potentials below to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C.
3 I2(s) + 2 Fe(s) ? 2 Fe3+(aq) + 6 I (aq)
3.5 × 10-59
1.1 × 1017
8.9 × 10-18
2.4 × 1058
1.7 × 1029
If 0.80g of gas occupies 295 mL at 25 degrees celsius and 680 mm Hg of pressure, what is the molar mass of the gas?
calculate the molar solubility of calcium carbonate in 0.050 molar calcium chloride and ksp for calcium chloride is 3.8X10^-9.
A 3.46 g sample of zinc heated to 95.4 C was dropped into 50 g of water at 20.7 C in a calorimeter. The temperature rose to 21.2 C. What is the specific heat of zinc?
What is the pH of the solution after 39.2 mL of NaOH have been added to the acid? Ka=1.3x10^-5
Predict the relative order of Rf values for the amino acids in the following mixture: Ser, Lys, Leu, Val, and Ala. Assume that the separation was carried out on paper chromatography
Using henderson hasselbalch calculate the ph of .5 L of 2.0M solution of nitrous acid, HNO2 that also contains 140g of nano2 (MM=70g/mol)
The component of structure responsible for holding the 4 chains of hemoglobin together is a. primary
Using the Bohr equation for the energy of any level in a hydrogen atom, calculate the energy of each level, n=1 through n=8 and n=(infinity), f. Calculate change in Energy
The initial pH. the volume of added base required to reach the equivalence point the pH at 12.0 mL of added base
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken
Glycolysis and gluconeogenesis are reciprocally regulated at the steps that interconvert fructose-6-phosphate and fructose-1,6-bisphosphate.
What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?
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