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Explain the following data are given for . Normal melting point, -23C , normal boiling point, 77C; density of liquid 1.59g/ml ;vapor pressure at 25C , 110 Torr.
Explain how much heat is required to vaporize 2.00 L of CCl4 at its normal boiling point?
calculate the molecular mass of the nonionic solutes 8.02 g of solute in 861 g of water lower the freezing point to
If aqueous acetone (80% acetone, 20% h2o) is used as the extraction solvent instead of 100% acetone, the extraction yields of chlorophyll a and beta carotene
A rigid flask is initially filled with 4.00 atm of NO2(g) and no N2O4(g) at 100 C. After equilibrium is achieved, the pressure of NO2 is 1.56 atm.
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations please.
A solution of 0.312 M KOH is used to titrate 15.0 mL of a H2SO4 solution. write the balanced chemical equation. what is the molarity of the H2SO4 solution if 28.2 ml of the KOH solution is required?
hydrazine n2h4 is made by the reaction of ammonia nh3 with hypochlorite ocl-. given the following equation 420 kg of
Define whether each of the following aqueous solutions would be acidic, basic or neutral and explain. Comprise the appropriate net-ionic equations to show why given solutions are acidic or basic.
Type the following formulas in order of increasing boiling point: RbF, Co2, CH3OH, CH3Br.
How many electrons are around the central atom in the expanded valence in I3-; where the 3 is subscript and the negative sign is superscript
Why acetone has significantly high refractive index when a mixture of acetone and water is distilled
Consider the oxidation of ethanol
what is its characteristic wavelength? hint recall that the kinetic energy of a moving object is e12mv2 where m is the
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