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What mass of C2H5OH should be added to 620kg of the paraffin in formulating the mixture if the vapor pressure is of ethanol at 35 degrees C over the mixture is to be 8 torr? The vapor pressure of pure ethanol is 35 degrees C is 100 torr
The attractive force between neighboring dipoles. the force that arises because of the large differences in electronegativities in the N-H bonds
a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015
Calculate the difference in the chemical potential of sucrose at 0.01 M and at 0.0001 M concentrations.
Give three differences that might be noted between the titration curve for hydrochloric acid and a titration curve for a weak unknown acid?
A mixture of NO, CO2, and O2 gases has a total pressure of 2.5000 x 10^3 torr. If the partial pressure of NO is 800.0 torr and CO2 is 600.0 torr, what is the partial pressure of O2
A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.
In aqueous solution, which of the following would be an acid according to the definitions of the Arrhenius, the Brønsted-Lowry, and the Lewis theories?
If the photosynthesis portion of the carbon cycle represents the world's capacity for generating biofuels (in addition to supplying food) what percentage of the world's biomass production
For the reaction , 2Cr2 + Cl2(g)--> 2Cr3 +2Cl, Ecell is 1.78 V. Calculate E cell for the related reaction Cr3 + Cl--> Cr2 +1/2 Cl2(g)
if 100 mL of 0.100 M NaCl is added to 100 mL of .01 M NaCl, what is the concentration of Na ions in the final solution?"
Determine the value for delta H solution at infinite dilution calculated from the following delta standard H of formation
Calculate the radius of the metal atom. A hypothetical metal has a face-centered cubic unit cell with the edge length of 4.943 Å.
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