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Freezing point of Pure 2-methyl-2propanol is 25.5 degree Celsius, however it absorbs H2O when it on exposed to humid air. determine how many milligrams of H2O are present in sample If the freezing point of 100.0 grams of sample of 2-methyl-2-propanol =24.59C, (2methyl-2propanol has Kf=4.68Ckg/mol
Why does the absolute refractory period occur and What is happening in the cell.
The solution density = 1.013 g/mL and suppose that the density of pure water =1.00 g/mL. Determine the molality of this solution?
Determine the ion notation for an atom with 18 electrons and 20 protons
Calculate brightness of a wavelength undergoing Rayleigh scattering.
Determine the mass of H 2 O in the flask and it's the true volume at 20° C?(at 20°C the Density g/mL=0.9982071,20°C the volume of 1g of water (mL) corrected for buoyancy is 1.0029 )
The resulting solution freezes at 26.5 oC. If Kf for the solvent is 1.74 o C/m then determine the molar mass of the nonelectrolyte compound?
Using a sample of 0.385 g of Alka-Seltzer, the mass of Carbon dioxide is found to be 0.122 gram. Compute and enter response (in numerical value only) to three significant figures.
Compute the moment of inertia of the molecule in kg m 2 . And also determine the greatest wavelength of the radiation that can excite the molecule into rotation.
Determine how many moles of CO 2 would have to be combined at constant temperature and volume to increase the amount of CO to 0.300 moles?
Determine the value of the solubility-product constant if solubility of T3U2 =4.24× 10-20 mol/L.?
Compute the a)molarity of the solution, b)molality of the solution, c) mole fraction of Ammonia.
Determine the mass of snow that can be completely melted - Determine the mass of snow (frozen water) that can be completely melted with the application
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