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Question- Consider an aqueous solution that has the osmotic pressure 99 kPa at T=288 K.
1) What is the boiling and freezing point of the solution?
2) What is the activity coefficient of water in the previous case?
Give reasons or calculations to sustain your answer.
In respiratory acidosis, as the CO2 concentration decreases in the bloodstream, the concentration of H3O+ decreases, and as a result, the pH decreases below the normal range.
The density of a human body can be approximated by the density of water, which is equal to 1.000 x 103 kg/m3. What volume will a 185 lb person occupy in liters
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.500 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.74? Kb for ammonia is 1.8*10^-5.
Describe spectroscopic or chemical tests to distinguish between the following pairs of compounds
At a certain temperature, Kc for the reaction, PCl5 = PCl3 + Cl2, is equal to 3.33. After 0.20 mole of PCl5 and 1.0 mole of PCl are introduced into a 2.00-L evacuated chamber, calculate the equilibrium concentration of PCl5
How much heat (in kilojoules) is evolved or absorbed in the reaction of 3.05 of with enough carbon monoxide to produce iron metal?
When 35.0 g of an unknown nonelectrolyte is dissolved in 220.0 g of benzene, the solution boils at 83.2°C. Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
in joules experiments the slow lowering of a weight through a pulley and cable arrangement turned a stirrer in an
find the change in the fraction of visibility for a person from planet krypton with x-ray vision in addition to visible
Explain why recrystallization, as a general technique, is usually effective at removing a few percent of impurity, even though the solubility (g/mL) of the impurity might be similar to that of the main component.
Liquid nitrogen trichloride is heated in a 2.88-L closed reaction vessel until it decomposed completely to gaseous elements. The resulting mixture exerts a pressure of 766 mmHg at 75°C.
which of the following combinations of hybridization and molecular geometry is possible?1. sp3 trapezoidal2. sp3
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