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Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the
The dependance of the equilibrium constant of a reaction on temperature is given by the van't Hoff equation: lnK = -change of H/(RT) + C where C is a constant
The student then adds water to the flask dissolving the sugar the mass is now 204.274g. calcuate the density of this solution
Draw the skeletal structure of the organic species containing the carbonyl functionality needed to form 3-ethyl-1-pentanol upon metal-catalyzed hydrogenation.
What is the bubble-point temperature of the solution. What are the mole fractions of ethanol (e) and water (w) in the vapor phase at the bubble-point temperature
How do you account for the following facts: formic acid, HCOOH contains one carbon oxygen bond of 1.36 A and another of 1.23 A yet sodium formate, HCOO- Na+, contains two equal carbon oxygen bonds,
The value of Ksp for silver carbonate, Ag^2CO^3, is 8.10 X 10^-12 . Calculate the solubility of Ag^2CO^3 in grams per liter.
You are testing some novel fuel mixtures for potential use in automobiles. Your testing apparatus is a 2.54-cm inner diameter cylinder fitted with a piston, designed to mimic a cylinder found in a c
Imagine a solution at 25 oC which contain 25.0 mL of ethanol (d = 0.800 g/mL) and 40.0g of water (d =1.00 g/mL). At this temperature the vapor pressure of water is 23.8 Torr and that of ethanol is 6
what is the percentage ionization of the benzoic acid in the resulting solution. Ka(benz acid)=6.5 * 10^-5
200 mL sample of lake water is contaminated with a single monoprotic acid. titrating this sample with a .005 M NaOH required 7.3 mL of the NaOH solution to reach the endpoint. what is the concentrat
The concentration of Mg2+ in seawater is 0.052 M. What hydroxide concentration is needed to remove 90% of the Mg2+ by precipitation
Osmosis occurs when the solvent molecules move from a solution of higher solute concentration to a solution of lower solute concentration.
Classify the set of solutions based on the movement of solvent from the first solution listed to the second solution listed as osmosis or reverse osmosis.
The physical separation of crude petroleum into fractions is based on boiling point differences among components present
At pH=7, do you expect the following peptides to bind a cation exchanger or an anion exchanger resins
If an allylic halide with formula C5H9Cl undergoes an Sn1 reaction with water, what are the two isomeric products
What is the major organic product that results when 1-tert-butylcyclopentanol is treated with concentrated sulfuric acid and heat
Calculate the change internal energy for a system that is giving off 45.0 kJ of heat and is performing 855 J of work on the surroundings.
Using the following equation for the combustion of octane (C8H18) , calculate the heat of reaction (enthalpy change) when 100.0 g of octane C8H18 reacts with oxygen in a combustion reaction. The mol
Into what type of unit cell (i.e., simple cubic, face-centered cubic, or body-centered cubic) does this material crystallize? Be sure to fully support your answer. The apparent atomic mass is 120.5
What is the color of most salts containing the copper (II) ion. the color of most salts containing the cobalt (II) ion. the color of most salts containing the nickel (II) ion
calculate the composition of the vapor phase at 25 °C if the vapor above the liquid phase is composed only of 1-propanol and 2-propanol
A reaction of cyclobutene with NBS and light. Why does a bromide produce on the secondary carbon not the tertiary like a normal bromonation. What exactly does NBS do
Determine whether each of the following salts will form a solution that is acidic, basic, or Ph -neutral. K2CO3, KCl, NH4ClO, CH3NH3Cl, Fe(Clo4)3