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For the solvents below with their value for Kb (in parenthesis). If a solute is added to each of the solvents to a 1.0 m concentration, which solvent would exhibit the largest change in boiling point? a) Acetic acid (3.07 m-1 ) b) Benzene (2.53 m-1 ) c) Nitrobenzene (5.24 m-1 ) d) Phenol (3.56 m-1 ) e) Water (0.512 m-1 ).
The value of Ksp for silver carbonate, Ag^2CO^3, is 8.10 X 10^-12 . Calculate the solubility of Ag^2CO^3 in grams per liter.
Calculate the mass of ferrous ammonium sulfate you would need to add to a 5.00 mL volumetric flask to make a solution
There is 12.0 g CCl3F in a 1.1 L container at 856 torr and 300 K. What is the mass of the liquid left over?
The method used in this experiment is sometimes called the vapor density method. Beginning with ideal gas equation, show how the density of a vapor may be determined by this method.
Which stage of ionization usually produces more ions and why?
A sample of a gas in a piston/cyclinder apparatus occupies 33.1 mL at 1.14 atm and 23.3°C. If the volume of the sample is increased to 77.4 mL and the temperature changes to 39.9°C, what is the new pressure, in atm, of the sample
A buffer is composed of 0.400 mol H2PO4^- and 0.400 mol HPO4^2- diluted with water to a volume of 1.00 L. The pH of the buffer is 7.210. How many moles of HCl must be added to decrease the pH to 6.210?
Find the absolute and percent relative uncertainty and express each answer with a reasonable amount of significant figures. What is the absolute value , absolute error and relative error of:
Why do primary alkyl halides typically undergo SN2 substitution reactions more rapidly than do secondary or tertiary alkyl halides?
The insecticide DDT has a half-life in the human body of about 7 years. That is, in 7 years its concentration.( Although DDT is no longer in use in the United States).
why does hydrochloric acid and acetic acid have the same equivalence, while hydrochloric acid and sulfuric acid
what is the annual cost of operation in a 70°F room if the door is opened 10 times a day with an average heat gain per opening of 200 kJ? How much would it cost to keep the inside at 35° F? Show work.
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