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An aqueous CaCl2 solution has a vapor pressure of 80.8 mmHg at 50C. The vapor pressure of pure water at this temperature is 92.6 mmHg.
What is the concentration of CaCl2 in mass percent?
For the equilibrium H2+CO2-> Kc= 3.18 at 1106K. If each of the 4 species was initially present at a concentration of 3.000M.
A 100 g sample of an unknown liquid absorbs 2000 J of heat energy, raising the liquid's temperature from 50 ?C to 70 ?C .What is the speci?c heat capacity of this liquid.
How many milliliters of .02 M HCl are used to completely neutralize 20.0mL of .01 M NaOH solution?
The molar concentration of Tl+ is M (4 dec places). The molar concentration of Cl- is M (4 dec places).
What are the equilibrium partial pressure of H2 when equilibrium is reestablished following the addition of 0.200 mol of HI?
200 drops of 0.025 M NaF solution and 100 drops of 0.025 M Ba(NO3)2 solution are mixed. a.) write the equation for the formation of solid BaF2.
Calculate the minimum volume of distilled water, in liters, necessary to completely dissolve a 7.5 g sample of AgBr (s) at 298K. The molar mass of AgBr is 188 g mol
Calculate amount of Energy released in formation of one mole of BaO (Not Lattice energy). The radius of barium ion is 1.35 A and Radius of oxide ion
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
What is the total pressure in torr of a gas in a sealed flask that contains oxygen at a partial pres. of 0.41atm and water vapor at a partial pres. of 358mmHg?
Compound A is a water-soluble liquid that gives positive 2,4- dinitrophenylhydrazine and iodoform tests and a negative Tollens test. The IR spectrum of A has bands at 2950, 1720 and 1370 cm-1.
Calculate the wavelength of the n=4 to n=1 and the n=4 to n=3 transitions. Indicate in which regions of the electromagnetic spectrum these transitions would occur.
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