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The vapor pressure of pure methyl alcohol at 19?C is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal. what is the vapor pressure at 19?C of ethyl alcohol in equilibrium with a solution prepared by mixing 1.9 moles of methyl alcohol (CH3OH) with 1.1 moles of ethyl alcohol (C2H5OH)?
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
A solution is prepared by dissolving 27.1 g urea, (NH2)2CO, in 171.2 g water. Calculate the boiling point of the solution. Urea is a nonelectrolyte.
The haloform reaction is executed in this experiment to synthesize benzoic acid from a methyl ketone, acetophenone. Provide an explanation for the following steps in the procedure. a) Why is acetone added at the end of the reaction
How much heat in kilojoules is evolved or absorbed in the reaction of 244.0g of calcium oxide with enough carbon to produce calcium carbide?
the volumetric flask during weighing by difference after recording the mass, how would it affect the final result for his calculated molecular mass of the metal carbonate?
Calculate the number of free electrons per cubic meter for copper, assuming that there is one free electron per copper atom. The electrical conductivity and density
Whats the reduced mass of CO2. I know how to do it for CO but since its 3 molecules do you go m1+m2+m3/m1m2m3 or is m2 just 32
a gas company charges 1.30 for 15.0 cubic feet of natural gas. a convert this rate to dollars per liter of gas. b if it
The rate constant of a chemical reaction increased from 0.100 s-1 to 2.70 s-1 upon raising the temperature from 25.0 degree C to 39.0 degree C.
Benzene is a organic solvent with the formula, The volume occupied by 1 micromole of liquid benzene and the volume occupied by 1 megamole of benzene as a vapor at STP (assume an ideal gas)
Which one is true or false f) HCLO4 is an oxoacid g) the name of HCLO4 is chloric acid i) in the redox reaction 4fe(s) + 3O2 (g) ---2Fe2O3(s) Fe is oxidized and oxygen is reduced
10 ml of .1 M phosphoric acid is titrated with .1M NaOH. After 10 ml of NaOH has been added the pH is 4 What is the ratio of H3PO4/H2PO4 - at this point
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