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Calculate the mass of propylene glycol (C3H8O2) that must be added to 637 g of water to reduce the vapor pressure by 4.74 torr at 40°C. The vapor pressure of pure water at 40°C = 55.3 torr.
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
If 5.50 mol calcium carbide reacts with an excess of water, how many moles of acetylene will be produced.
Gaseous carbonyl sulfide reacts according to the balanced equation. If a total of 3370 kJ of heat is generated in the reaction as written, how many moles of SO2 are produced?
Compound B gave a positive 2,4-dinitrophenylhydrazine test, but a negative result when treated with the Tollens reagent. However, B did give a positive iodoform test. The 1H NMR spectrum for Compound A showed the following
Calculate the uncertainty in the distance of the electron (in Angstroms) at any point during its 25 Angstrom journey. (HINT: remember velocity = distance/ time)
Give a physical explanation of why the intrinsic viscosity and the specific viscosity divided by the concentration need
it was important that the flask be completly dry before the unknown liquid was added so that water present would not vaporize when the flask was heated.atypical single drop of liquid water has a volume of approximately 0.05ml
explain why the chemical formulas AlCl3, PCl3 and CoCl3 are so similar, yet their names are so different.
The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 475 m/s
If you wanted to prepare a solution of CO in water at 25 degrees Celsius in which the CO concentration was 2.5 mM, what pressure of CO would you need to use?
In photosynthesis, plants from glucose (C6H12O6) and oxygen from carbon dioxide and water, Part B, Calculate delta H rxn at 15 degree C
Calculate the standard cell potential (E^o) for the reaction X(s)+Y^+(aq)-->X^+(aq)+Y(s) if K = 5.33x10^-3
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