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Ethylene diamine (bp 116 C) and water form a maximum boiling azeotrope (bp 120 C); the azeotropic mixture is 80% in ethylene diamine. Sketch a distillation curve(volume on the x-axis and temperature on the y-axis) to show what you should expect to see should one distill 35 mL of a 50:50 mixture of these liquids. Be as quantitatively as possible.
density of 9.14g/cm^3 is placed in a 30.0mL cylinder. Water level rises to 34.5mL. what is the mass of the piece of metal?
What mass of sucrose C 12 H 22 O 11 must be mixed with 543 grams of H 2 O to make a solution with an osmotic pressure =8.00 atm at the temperature of 12 degree celsius?
The addition of a sodium flouride solution to one of lead nitrate results in a net ionic equation of PB 2+ (aq) + 2 Fe- (aq) yielding PbF2 (s). If 25.0 ml of 0.200 M NaF solution are mixed with 10.0 ml of 0.150 M Pb(NO3)2 solution, how many grams ..
A saturated solution of magnesium fluoride , , was prepared by dissolving solid in water. The concentration of ion in the solution was found to be 1.18×10?3
What would you expect to see in a reaction between salicyclic acid and ferric chloride. I would also like to know why.
If 2.5 mol of ethylene oxide is decomposed at 93 degrees celcius what will be the final temperature of the products? The heat capacity of the products is 110.13J/mol C
The temperature of a lead fishing weight rises from 26 degrees Celsius to 38 degrees Celsius as it absorbs 11.3 J of heat. What is the mass of the fishing weight in grams.
Write the molecular, total ionic and net ionic equations summarizing the reaction between aqueous solutions of potassium chloride and silver nitrate.
at equilibrium, it was found that the concentrations were: .0584M for H2, .0195M for N2 and .430M for NH3. What was the initial concentration of ammonia
The electron in a hydrogen atom occupies a 6p orbital. What is the longest wavelength of light that can be emitted by this atom? Give answer in nanometres, nm
The solution to Chemistry, Are there differences between having electron-donating groups and electron-withdrawing groups
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl. Kb of CH3NH2 = 3.7 10-4.
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