Calculate boiling point and freezing point of solution
The antifreeze in a car was a 50% by weight solution of ethylene glycol C2H6O2 in water. Calculate the boiling point and freezing point of this solution. (for H2O: Kb= 0.52 C/m... Kf=1.86 C/m.
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When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car at an angle of 7o relative to the vertical. Find the tension in the string holding the tassel.
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg.
A closed circuit consists of two semicircles of radii 37 and 20 cm that are connected by straight segments. A current of 3.2 A flows around this circuit in the clockwise direction. Find the magnetic field where the two semicircles meet in the cent
Calculate the maximum number of moles and mass of iodic acid (HIO3) that can form when658 g iodine trichloride reacts with111.2 g water. What mass of the excess reactant remains?
A roller coaster goes through a complete loop. If the train is given an initial speed of v0 = 30 m/s, what is the largest value that the radius R can have if the car is to remain in contact with the circular track at all times?
Calculate the volumetric size of a water molecule in vapor, assuming 1 mole of the vapor occupies 22.4 L, as if the vapor were an ideal gas.
At the beginning of the year . Grillo Industries bought three used machines from Freeman Incorporated .The machines were immediately overhauled, installed and started operating Because the machines were recorded separately in the accounts.
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
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