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When extracting caffeine from tea, what chemical properties leads to the separation of the substance into two layers after adding dichloromethane?
Glucose is much more soluble in water than 1-hexanol even though both have 6 carbons. Explain
From an environmental perspective, describe two other advantages of switching to a geothermal system.
Calculate the osmotic pressure of a solution containing 20.00mg of hemoglobin in 16.3mL of solution at 25 ? C The molar mass of hemoglobin
Hydrogenation of a monounsaturated fatty acid yields a saturated fatty acid. Oleic acid is a monounsaturated fatty acid. Predict the product of its hydrogenation:
The average person burns 12000 kJ of food energy per day(2,800,000 cal.) If the heat of combustion of sugar is 4000 cal/g, and the heat of combustuio of fat is 9000 cal/g: How many grams of sugar must eat to get a day's supply of energy
What is the density of lead (in g/cm^3) if a rectangular bar measuring 0.500 cm in height, 1.55 cm in width, and 25.00 cm in length has a mass of 220.9 g?
Draw all of the stereoisomers that result when (E)-but-2-ene is hydrogenated with D2 over a metal catalyst.
300.0 mL of 2.0 x10-5M AgNO3 are added to 200.0 mL of 2.5 x10^-9M Nacl. By means of the correct calculations find out whether or not Agcl will precipitate. Ksp of AgCl = 1.6 x10-10
Calculate the CNaOAc and CHOAc necessary to make the desired buffer. Remember, the 0.100M specification indicates
a gas sample in a piston assembly expands doing 588 kj of work on its surroundings at the same time that 372 kj heat is
Five metal rods (Copper, Iron, Nickel, Tin and Zinc), at room temperature, of equal mass are place in a 100 oC water bath. Which metal will reach 80 oC first.
If a 5.0g KBr sample, at 25 degree C, dissolves in 25.0 mL of water, also at 25 degrees C. The final equilibrium temperature of the resultant solution is 18.1 degree C. Explain what is the enthalpy change. Hs, in joules per gram and kilojoules per..
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