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1) Calculate the freezing point of a solution containing 0.600kg of CHCl3 and 42.0g of Eucalyptol (C10H18O)?
2) What would be the expected Freezing Point and Boiling Point of a solution of 245gm of glucose added to 675 ml of water with a final volume of 710ml?
3) What would be the expected Freezing Point and Boiling Point of a solution of 31.5 gram of sodium chloride added to 575 ml of water with final volume of 580.0 ml?
A sample of material contains contains 20 mg of Iodine ^131. Calculate: A) The number of I ^131 atoms initially present. B) The activity in becquerels and curies.
sotonic saline solution, which has the same osomotic pressure as blood, can be prepared by dissolving 0.923 g of NaCl in enough water to produce 100.mL of solution. What is the osmotic pressure of this solution at 25 ?C?
how many grams of formic acid hcooh must be added to 0.300 l of 0.110 m sodium formate hcoona to yield a buffer
Example: Determine the solubility of calcium fluoride at 25C. And Be sure to note the difference between Solubility and Solubility Product Constant ! What could we do to change the system and produce a precipitate?
Modern instrumental techniques are capable of detecting lead in a milliliter sample at picomolar concentration. How many moles of lead are in the sample
The standard free energy change for a chemical reaction is +21.9kJ/mole. what is the equilibrium constant for the reaction at 87 degrees?(R=8.314J/K mole.
Explain this different physical state behavior in terms of chemical structure and secondary intermolecular bonding.
Suppose that 0.82 g of water condenses on a 80.0 g block of iron that is initially at 24 C.If the heat released during condensation goes only to warming the iron block
the reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2kj. the reaction of atp
Identify the species that is oxidized and the species that is reduced in each reaction.Write out two half reaction to show how many electrons are gained or lost by each species.
If atom X forms a diatomic molecule with itself, the bond is A) ionic B) polar covalent C) nonpolar covalent D) polar coordinate covalent
The density of ethanol is 0.7893 g/mL. Calculate the maximum work that could be obtained by burning 1.000 gallon of liquid ethanol
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