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The vapor pressure of pure water at 25°C is 23.77 mm Hg. What is the vapor pressure, in mm Hg of water above a solution that is 3.500 m glucose, C6H12O6?
.20g of methyl alcohol, CH3OH, are dissolved in 16.8g of water, H2O. What is the mole fraction of the solute.
The formula for the determination of energy is e=hv=hc/lamba where h is planck's constant and c is the speed of light. what is the relationship between wavelength and energy?
determine the moles of product ( Fe for this reaction) made by both reagents. what is the limiting reagent?
calculate the mass of vapour present in a room of volume 250 meter cube that contains air at 23 degree centigrade on a day when the relative humidity is 53 per cent.
Triethylene glycol, the solvent for your first reaction, and heavy mineral oil are both high boiling, high molecular weight solvents.
Please propose reasonable syntheses of the following compounds from benzene: a) meta-chloroacetophenone; b) p-chlorobenzophenone.
A mass of 57 g of lead fishing weight absorbs heat of 146 Calories. Determine its final temperature If its initial temperature =48 Centigrade,?
The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
What chemical tests might be used to distinguish between pentanal and 2- pentanone; between benzyl alcohol and diphenylmethanol?
If you look at a reaction for an esterification reaction, you cannot tell where the oxygen comes from (acid or alcohol). Draw the mechanism of this reaction, and devise an experiment using the mechanism and O18 (O18 isotope) to help prove unequivo..
Calculate the resulting concentration of triiodide ions in the acidified solution.
What is the pressure in a 65.0L cylinder filled with 0.235 moles of nitrogen gas at a temperature of 105K.
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