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The O-H stretch of a concentrated solution of an alcohol occurs at a lower frequency than the O-H stretch of a dilute solution.
A 5.00 mL standard phosphate solution containing 45.0 mg of phosphate per liter is added to a second 2.00 mL sample and diluted to 100.0 mL. The absorbance of this solution is 0.506 at 700 nm. Calculate the concentration of phosphate in the origin..
In the Virtual ChemLab experiment "Electronic State Energy Levels," what gaseous element is used in fluorescent light tubes?
A 4.50-g sample of LIL at 25.oC dissolves in 25.0 mL of water also at 25.0C. The final equilibrium temperature of the resulting solution is 60.8C. What is the enthalp of solution of LICL expressed in kilojoules per mole?
if 69 kJ of heat is applied to a 1012 g block of metal, the temperature of the metal increasesby 11.4 degrees C. Calculate the specific heat capacity of the metal in J/g degrees C.
What volume (in mL) of 0.657 M solution of iron(III) chloride can be made from 52.3 mL of a 1.89 M solution? Assume the volumes are additive.
Which element in the periodic table has the smallest ionization energy?
If oxygen gas were collected over water at 22 C and the total pressure of the wet gas were 650 mm Hg, what would be the partial pressure of the oxygen?
calculate acidic and basic buffer capacity. How much of strong acid should be added to shift buffer pH one unit down, and how much of the strong base is needed to bring buffer pH one unit up?
Based on the half-reactions and their respective standard reduction potentials below, which addition to an aqueous solution containing Fe(NO3)2 will result in a reaction under standard-state conditions?
At 80 deg. Celsius the vapor pressures of pure liquids X, Y, and Z are 385, 190, and 66 mm Hg, respectively. What pressure must be exerted on the surface of the solution containing one mole of X, three moles of Y, and two moles of Z for boiling to..
At constant volume, the heat of combustion of a particular compound is -3547.0 kJ/mol. When 1.129 g of this compound (molar mass = 100.35 g/mol) was burned in a bomb calorimeter
The oxidation of hyrogen by oxygen is one of the most-used reactions in fuel-cell technology. The overall reaction, which is given below, has a (Delta)G^o value of -474 kJ/mol.
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