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The Freezing point depression of a .100 molal MgSO4 solution is .225Celsius . Determine the experimental Van't hoff factor of MgSO4 concentration. M=π/RT π=iMRT Tf=iKfm Answer is 1.21How do you get this?
B. Determine the Freezing point of .100m aqueous solution of NaCL? Vant hoff factor of 1.87 at .100m Answer is -.35 celsius How do you get this?
If the molar mass is 88 g/mol and the percent composition is 54.5% carbon, 9.15% hydrogen and 36.3% oxygen, what is the molecular formula of dioxane?
A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 °C. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 °C.
A feed mixture of ethanol and water is 40 mole % ethanol. The feed is at 200 degrees Celcius and is at a high enough pressure that it is liquid. It is input into the column through a valve, where is flashes. Column pressure is 1 kg/cm^2. Find the ..
what relative masses of dimethyl amine and dimethyl ammonium chloride do you need to prepare a buffe
In the reaction of sodium benzoate with hydrochloic ac to form benzoic acid, if 1.29 g of benzoic acid were formed, how many mmol of sodium
A 2.770 g sample of a compound containing only carbon, hydrogen, and oxygen burns in excess oxygen to produce 4.06 g of CO2 and 1.66 g of H2O. Calculate the mass (in g) of C in the sample.
assume that the activation energy for a certain reaction is 173 kjmol and the reaction is started with equal initial
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
a steel tank containing helium is heated to 555?c. if you could look into the tank and see the gas molecules what would
If a wheelchair-marathon racer moving at 13.3 miles per hour expends energy at a rate of 635 Calories per hour, how much energy in Calories would be required to complete a marathon race (26.2 miles) at this pace
The OH- concentration in a 2.5×10-3 M Ba(OH)2 solution is A) 4.0 × 10-12 M. D) 1.2 × 10-2 M. B) 2.5 × 10-3 M. E) 0.025 M. C) 5.0 × 10-3 M.
Carbon tetrachloride, CCl4, is nonpolar. What forces hold the molecules together?
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