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1) Define what is the freezing point of a solution (in degrees Celsius) prepared by dissolving 50g of glycerin (C3H8O3) in 200g of ethanol (C2H5OH), which has a freezing point at -114.6 degrees Celsius, (Kf= 2.00 degrees Celsius/mol)?
2) Explain which liquid will have the lowest freezing point?
(A) aq. 0.8m glucose
(B) aq. 0.7 fluctose
(C) aq. 0.26m AlI3
(D) aq 0.5m NaCl
3) Explain why do we have to measure the boiling temperature of water in the experiment? Can we simply enter 100 degrees Celsius in equation (2)?
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
How many ml of a 2M HCl are required to neutralize 200 ml of a 0.4 M solution of NaOH?
the hydrogen gas generated is collected over water at 25 c. the volume of the gas is 246 ml measured 1.00 atm.
Starting with 86.3 g NO and 25.6 g H2, find the theoretical yield of ammonia in grams
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Determine the Boyle temperature for a gas with the equation of state: PVm=RT(1+(P/Pc)(Tc/T)*8/57*(1-4(T/Tc)^2)).
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Calculate the pH of a solution in which the concentration of the hydronium ion is 2.0 x 10^-4 M.
Calculate so for cooling 1.00 mol of Ne from 298K to 253K under constant volume conditions using the Sakur-Tetrode equation
The pOH of a solution is 9.4 . Calculate the hydrogen ion concentration of the soltution. What mass of KOH is necessary to prepare 800.0ml of a solution having a pH = 11.56
what is the mass of 2.50 liters of an intravenous glucose that has a density of 1.05g/ml. A patient is required to take 0.400 mg of ampicillin / day. Ampicillin is available as a liquid suspension at a concentration of 50.0mg/5.0 m. How many ml of..
What is the alkalinity of the river, What concentration of acid, for example, HCl, would result in a pH of 7.5
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