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A solution is prepared by adding 35.5 mL of ethylene glycol, C2H6O2, to 250.0g of water. What is the freezing point of this solution? The Kf for water is 1.86 C/m and the density of ethylese glycol is 1.1135 g/mL. Consider if the solute is an electrolyte or a non electrolyte.
A 129-mL portion of that solution is diluted by adding 121 mL of water. What is the final concentration? Assume the volumes are additive.
A solution contains .294 M solution sodium cyanide and .0919 M hydrocyanic acid. What is the pH of this solution.
the resulting solution is analyzed in a sample container that is 1dm long? The specific rotation of (R)-2-butanol is -13.9 degrees mL g-1dm-1.
AgCl is a sparingly soluble salt, with a solubility of about 10-5 M in pure water. Adding KCN increases the solubility of AgCl because: CN- reacts with Ag+ to make a soluble complex.
Explain how this system appears static but in fact is a dynamic equlibrium, Na+(aq) + Cl-(aq) --> NaCl(s), that is in constant motion though the mass of solid is constant.
Write the formulas of all possible monobromination products when cyclopentane is exposed to Br2 in presence of light, rection occurs.
When 280. mL of 1.50× 10-4 M hydrochloric acid is added to 125 mL of 1.75 × 10-4 M Mg(OH)2, the resulting solution will be
Which one of the following salts, when dissolved in water, produces the solution with the lowest pH
Determined if CS 2 of 2.500 grams mix with an excess of chlorine gas , 9.310 Kilo joule of heat is evolved. What sort of reaction is this , Is the reaction exotermic also find out delta H for the reaction?
ethoxypropan-2-ol can be made by the ring opening of an epoxide when sodium ethoxide in ethanol-water is used. A) Draw the skeletal structure of (R)-1-ethoxypropan-2-ol.
what volume of O2(g), measured at 17.7 degrees C and 0.978 atm reacts with 15.1 g C4H10 to produce CO2(g) and H2)(l)? Hint: you must write a balanced equation for the reaction.
At a certain temperature, reaction has equilibrium constant (Kc) of 1.9 x10^19. Determine the equlibrium constant for the reaction based on this information at the same temperature.
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