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What is the final volume of a 400 mL gas sample that is subjected to a tempature change from 22 degrees celcius to 30 degrees celcius and a pressure change from 760 mm Hg to 360 mm Hg?
Draw a mechanism to demonstrate how pyridine catalyzes the hydrolysis of acetic anhydride to two molecule of acetic acid. Is this reaction reversible? why or why not?
Their boiling points in C are: Ne -245, Ar -186, Kr -152, Xe -107. Using the periodic relationship between the noble gases, predict the boiling point of Radon.
It is desired to produce an aqueous solution of pH=8.75 by dissolving one of the following salts in water at 298 k. Which salt would you use and at what molar concentration?
Calculate the pH of a solution prepared by adding 20.0 mL of 0.100 M HCl to 80.0 mL of a buffer that is comprised of 0.25 M NH3 and 0.25 M NH4Cl. Kb of NH3 = 1.8 x 10-5.
The rate of waste brine removal (Stream 6) 4.2. The rate of desalinized water (potable water) production (Stream 4) 4.3. The fraction of the brine leaving the osmosis cell that is recycled
What are the concentrations of HSO4-, SO42-, and H+ in a 0.20 M KHSO4 solution? (Hint H2SO4 is a strong acid; Ka for HSO4- = 1.3x10-2)
Describe all the symmetry planes in methylene chloride. Draw a figure and arrows to show any symmetry exes in methylene chloride. Also state how many fold.
An 11.0 gram sample of CaCl2(s) is dissolved in 125 grams of water with both substances at 25.0°C. If the final temperature of the mixture is 39.2 °C.
A 30.0-mL sample of 0.165 M propanoic acid is titrated with .300 M KOH. Calculate the pH after the following amounts of base is added
Light travels extremely rapidly (c = 3.00×108 ). Suppose you had to travel 20 miles to work every day. If you traveled at the speed of light for the entire trip, how long would it take you to get to work (in seconds)? [1 mile = 1.61]
If a solution containing 92.455 g of mercury(II) chlorate is allowed to react completely with a solution containing 16.642 g of sodium sulfide, how many grams of solid precipitate will be formed?
A reaction vessel contains 13.9g of CO and 13.9g of O2. How many grams of CO2 could be produced according to the following reaction. 2CO + O2 ---> 2CO2
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