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By means of measuring the equilibrium between liquid and vapor phases of a solution at 30 degrees C at 1.00 atm, it was found that xA = 0.220 when yA = 0.314. Compute the activities and activity coefficients of both components in this solution on the Raoult's law basis. Explain the vapor pressures of the pure components at this temperature are p*A = 73.0 kPa and p*B = 92.1 kPa. xA is the mole fraction in the liquid and yA the mole fraction in the vapor.
Chromic acid is a diprotic acid H2CrO4 with Ka1 = 0.18 and Ka2 = 3.2 x 10-7. A solution of potassium chromate is prepared at pH 5.43. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
Why is it important to use lambda max (measured from spectroscope)? What I am unclear about is why it is important to know it before creating a standard curve?
question a 1.71 mol sample of ar gas is confined in a 41.9 liter container at 25.7 c. if the volume of the gas sample
If 450 g SO2 escaped into the atmosphere and all the escaped SO2 were converted to H2SO4. How many grams of H2SO4 would be produced in the atmosphere?
What quantity of useful work can be obtained when Mg is added directly to the beaker of HCl. How can you harness this reaction to do useful work
consider a glass of 150 ml of water at 30degc. calculate the mass of ice at -15degc that must be added to cool the
H2s and H20 have similar structures and their central atoms belong to the same group. Yet H2S is a gas at room temperature and H20 is a liquid. Use bonding principals to expalin why this is.
Typically, increasing the concentration of the nucleophile of an SN1 reaction has no impact on the rate of the reaction
Ozone, O3 (g), is a form of elemental oxygen that is important in the absorption of ultraviolet radiation in the stratosphere. It decomposes to O2 (g) at room temperature and pressure according to the following reaction
A 2.0 kettle contains 116 grams of boiler scale (CaCO3). How many times would the kettle have to completely be filled with distilled water to remove all deposits at 25 degree celcius
The density of benzene at 15C is 0.8787 g/mL. Calculate the mass of 0.1500 L of benzene at this temperature.
a zero-order reaction has a constant rate of 2.90times10-4 mrm s. if after 65.0 seconds the concentration has dropped
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