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You take your car to a mechanic to have it winterized. To protect your radiator from freezing the mechanic fills it with a solution made by mixing 50kg of water with 12kg of ethylene glycol (HOCH2CH2OH). If the freezing point of pure water is 0 C, explain what is the freezing point of the solution in your radiator?
how many liters of h2 gas at stp can be produced by the reaction of 4.60g of na and excess water accoring to the
Calculate the molality of a 0.055 M solution of ethyl alcohol of in water at 25 C. (Assume the density of the solution at such low concentration is equal to that of water at 25C, 0.997 g/mL.
A gas cylinder that contains argon has an internal volume of 6.88 L. A pressure gauge attached to the cylinder reads 1810 psi
Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35 individual xenon atoms.
a solution of hexane and heptane at 30.0c with a mole fraction of .305 has a vapor pressure of 95.0 torr and a
A solution of glycerol in 701 g of water has a boiling point of 103.8 C at a pressure of 760 mm Hg. What is the mass of the glycerol in the solution?
have a buffer solution composed of 4.00 mol of acid and 1.75 mol of the conjugate base. If the pKa of the acid is 2.20, what is the pH of the buffer?
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel.
If a sample of 0.059 g KHP requires 30.21 mL of NaOH to titrate it, what is the molarity of NaOH
Give the cell notation based on the following reaction: Fe(s) + Hg2 ++ (aqueous) = Fe++ (aqueous) + 2Hg (l) the solution concentrations are 0.01 M
Provide a structure for the following compound
What is the minimal external voltage one must supply in order to perform the electrolysis of molten CaCl2. Suggest a means for supplying this energy.
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