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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.
Sodium fluoride and lead nitrate are both soluble in water. If 1.13 g of NaF and 0.232 g of Pb(NO3)2 are dissolved in sufficient water to make 1.00 L of solution, will a precipitate form?
This leaves the aspartic acid amine group and the side chain carboxylic acid functional group of aspartic acid. Find the values for these two groups of as partic acid and calculate a predicted pI value for aspartame
Write the chemical equation for all the reactions both SN1 and SN2 involving primary and secondary substrates b) Rank the primary halide in order of increasing reactivity toward SN2
A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density
sketch reasonably accurately the ph curve for the titration of10.0 ml of 0.001m koh aq with 0.1m hcl aq. calculate and
The product formed is 2-hexanol, is this an example of 1,4 addition, or proceeds via a carbanion, or is an example of electrophillic addition, or results in sp2 hybridized carbon being transformed into a sp hybridized carbon?
One mole of any gas has a volume of 22.414 L at STP. What are the densities of the following gases in g/L at STP
buffer solution that has [H2PO4-]=[HPO4-2]=0.132 M. What is the pH of the solution before adding NaOH? After adding NaOH?
We have a fusion of metals A and B, their molar ratio is 1:1. If we pour 1.02 grams of this fusion into excess HCl solution, we will get 1120 mL of hydrogen gas. We would get the same amount of hydrogen gas if we poured 1.7 grams of our fusion int..
what wavelength lambda should the astrophysicist look for to detect a transition of an electron from the n 5 to the n3
Write three orbital designations that would be incorrect and explain why each is incorrect. For example, 1p would be an incorrect orbital designation because there is no p sub-shell in the first orbit.
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