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At 20oC, the vapor pressure of toluene is 22 millimeters of mercury as well as that of benzene is 75 millimeters of mercury. An ideal solution, equimolar in toluene and benzene, isprepared. At 20oC, explain what is the mole fraction of benzene in the vapor equilibrium with this solution?
(a) 0.23
(b) 0.29
(c) 0.50
(d) 0.77
(e) 0.83
BrO2- depicts the molecule by placing atoms on the grid and connecting them with bonds. Comprise all lone pairs of electrons. Demonstrate the formal charges of all atoms in the correct structure.
Calculate the vapor pressure of Hg at 86 oC (in atm). Hg(l) ? Hg(g) ?Ho = 61.32 kJ and ?So = 98.83 J/K
How many moles of Ammonia gas can be produced from reacting 4.5 Moles of Nitrogen gas
After treatment with trypsin, which cleaves at R and K, there were 3 fragments: two dipeptides and MGAV. What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
Assuming that radiation with lambda = 15.0 {rm cm} is used, that all the energy is converted to heat, and that 4.184 {rm J} is needed to raise the temperature of 1.00 {rm g} of water by 1.00 ^circ {rm C}.
What volume of base, in milliliters, is required to reach the equivalence point? (c) What is the pH at the equivalence point.
a volume 10.0ml of a 0.00550 m solution of cl- ions are reacted with 0.500 m soultion of agno3. what is the maximum
the structures of atoms, what bonds are and how they are made, the periodic table as far as how to understand electrons and know how many in each element. Electronegativities and polar/ non polar bonds, hydrogen bonds.
Given N2 (g) + 3 H2 (g) ? 2 NH3 (g), which scenario will allow you to eventually reach an equilibrium mixture involving these chemicals? Place only H2 into a sealed vessel. Place only N2 into a sealed vessel. Place only NH3 into a sealed vessel.
What is the change in internal energy (in J) of a system that absorbs 0.330 kJ of heat from its surrounding and has 0.586 kcal of work done on it in scientific notation.
Consider the chemical bonds found in the white solid, potassium hydrogen phosphate, K2HPO4. For each bond specified, choose the best description from the list of types below.
knowing that atp synthesis from adp and pi requires 30.5 kjmol. assuming that the combustion of palmitic acid gives off
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