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The freezing point of t-butanol is 25.50°C and Kf is 9.1°C · kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 12.2 g sample of t-butanol is 24.59°C, how many grams of water are present in the sample.
The rate constant of a reaction is 2.6*10-3s^-1 at 25 c, and the activation energy is 33.6kJ/mol. What is k at
The mass density of the resulting solution was 1040 kg/m^3. Calculate themolarity and molarity of sucrose in the solution.
When a piece of metal is irradiated with UV radiation (wavelength=162nm), electrons are ejected with a kinetic energy of 3.54x10^-19 J. What is the work function of the metal
ethyl acetate:petroleum ether was used to elute the chlesterol before dichloromethane
Silver chloride, AgCl, is a sparingly soluble solid. Answer the following questions about a saturated solution prepared by placing solid silver chloride in a 3.49 10-5 M NaCl(aq) solution
Why is anhydrous sodium sulfate added to the organic solution remaining after the extractions with 6M NaOH
How many grams of aluminum metal and how many liters of chlorine gas can be produced by passage of 4.8 amp of current for 2.3 hour under standard conditions (25?C and 1 atm pressure)?
The reaction is Cisplatin + H2O -> cisplatinOH2+ + Cl- Supposing the concentration of cisplatin in the bloodstream of a cancer patient is 4.73*10^-4 M. What will be the concentration after 24 hrs?
In each reaction box, place the best reagent and conditions from the list below. (A reagent may be used more than once.) acetylene to 3-hexyne-1-ol
Does the presence of water vapor affect the result? Explain why it does or does not have a large affect on the value obtained.
Calculate Ka for acetic acid in both the molal and molar standard states. Use as many sig figs as your calculations in part b.) warrant.
A copper tube is 1 inch in diameter and 2 feet long, it is filled with steel balls of 1 inch diameter. The space between the balls is filled with water. the specific gravity of the steel b all is 7.8. What is the bulk denisty of the contents of th..
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