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Vapor pressure of pure acetone (propanone) is 266 torr. When a non-volatile solute is added, the vapor pressure of acetone above the solution falls to 232 torr. What is the mole fraction of acetone in solution?
When maleic acid is heated to about 100C it forms maleic anhydride, however fumaric acid requires a much higher temperature (250-300C) before it dehydrates
Caffeine is made up of 49.5% C, 5.2% H, 16.5%O, and 28.9% N. A solution made up of 8.25g of caffeine and 100.0 of benzene (d=0.887g/ml) freezes at 3.03C. Pure benzene (kf=5.10 degrees C/m) freezes at 5.50C.
The pH of a bicarbonate-carbonic acid buffer is 6.95. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-)
differentiate acids from compounds that contains hydrogen and an anion, or oxyanions and are not acids
if 5.00 g of each NH3, O2, and CH4 are reacted, what mass of HCN will be produced, assuming 100% yield
determine partial pressure and number of moles of each gas in a 17.25 L vessel at 30 degrees celsius containing a mixture of xenon and neon gases only.
Calculate the cell potential for the following reaction as written at 73C, given that [Cr2+]=.885M and [Fe2+]=.0100M.
what is the mole fraction of A in the vapor above a binary solution of A and B in which the mole fraction of A is 0.30?
Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. What type of electromagnetic radiation is emitted in each transition?
A serum sample of a concentration of 23.0 ppm. How many mL of 0.010M EDTA solution would be added to 100 mL of serum sample to get to a final
At 27°C, a sample of sulfur dioxide (SO2) has a volume of 30.0 mL.
it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?
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