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The vapor pressure of chlorine dioxide (ClO2) is 155 Torr at -22.75 ? C and 485 Torr at 0?C. What is the normal boiling point of chlorine dioxide?
a solution contains 55 grams of ascorbic acid in 250 g of water freezes at -2.34 degrees C. calculate the molar mass of the solute
Calculate the number or calories of heat energy required for warming 34.6g of water from 18.9 celsius to 29.9 celsius
The wavelength corresponding to the threshold frequency to tungsten surface is 230nm. Calculate the kinetic energy of the photoelectron ejected from the surface of tungsten metal.
Calculate the equilibrium concentrations of NH3 and H2S if a sample of solid NH4HS is placed in a closed vessel and decomposes until equilibrium is reached
a pound of coffee beans yields 70 cups of coffee (4cups=1qt) how many milliliters of coffee can be obtained from 1 g of coffee beans
Calculate the molarity of each of the following solutions(a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution.
If I add 1.65 L of water to 112 grams of sodium acetate...What is the molality of NaC2H3O2 in this solution?
Histidine has three ionisable functional groups. Write the equilibrium equations for its three ionizations and assign the proper pKa for each ionization.
Determine the concentration of a solution prepared by diluting 25.0 milliliters of a 12 molar HCl solution with H2O until the final volume is 2.50 x 10² milliliters.
Transition metals can combine with carbon monoxide to form compounds such as Fe(CO)5 and Co2(CO)8. If you combine 0.150 g Ni with CO and isolate 0.437 g Ni(CO)x
The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?
To 333 milliliters of a 0.120 molar Pb(NO3)2 solution, 0.667 milliliteres of 0.435 molar KIO3 is added. Calculate the concentrations of Pb+2 and IO3- in the solution at equilibrium.
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