When the vapor pressure of pure water is given
What is the vapor pressure at 20C above a solution that has 85.5g of sucrose and 75 g of urea [CO(NH2)2] dissolved per kg of water when the vapor pressure of pure water at 20C is 17.5 torr.
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The time of efflux of H2O through Ostwald viscometers 1.52 minutes. For the same volume of an organic liquid of density 0.800 g/cc the time is 2.25 minutes.
Identify the percentage change in the volume exhibited by an ideal gas initially at the 20 C and 1 atm pressure then subjected to a pressure of 11 atm at 50 C.
Initially at 20 C and 1 atm pressure, a sample of benzene is subjected to a pressure of 11 atm at 50 C. assuming α and β to be constant, identify the percentage change in volume of the benzene.
Explain why can methyl orange or phenolphthalein be used for an HCl-NaOH titration, but only phenolphthalein is suitable for acetic acid-NaOH titration?
When the wire is struck a transverse blow at one end, determine how much time does the pulse take to reach the other end?
What mass of N2 gas was collected? At 20º C, the vapor pressure of water if 17.5 torr. A sample of N2 gas was collected over water at 20º C at a total pressure of 1.00 atm. A total volume of 250.0ml was collected.
Identify the element in the test tube. Is sugar one of the elements? When sugar is burned a black material is left in the test tube along with what appears to be drops of water on the side.
At 4062 minutes after a particular experiment had begun, the HI concentration was equal to0.00045 mol/L. The second-order rate constant for the decomposition of HI at700 °C is 1.6*10-3L/mol/s.
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