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Calculate the pressure (in atm) exerted by 1.00 mole of acetylene at 125°C in a 20.0-liter container. The van der Waals constants for acetylene are: a = 20.0 L2 • atm/mol2, b = 0.100 L/mol.
Describe how you will separate the following mixture of ions in solution. Include an explanation/rationale of the reagent used, etc. a. Na+ , Al3+, Ni2+, Sr2+
The molar volume of Al2O3 at 25°C and 1 atm is 25.715 cc/mole. Its coefficient of thermal expansion is 26·10-6 K-1 and the coefficient of compressibility is 8.0·10-7 atm. Estimate the molar volume of Al2O3 at 400°C and 10 kilobars pressure.
According to Raoult's law, which statement is false?
If the titration required 23.95 mL of 0.2556 M HCl to reach the endpoint, calculate the equilibrium molar concentration of B4O5(OH)4 2- in the saturated solution.
What is the name of the chemical formula Tl2Se. Does Tl have a +2 charge Tl (II)? Do all Roman numerals in chemistry have a positive charge
Choose the substance with the lowest vapor pressure at a given temperature. A) CO2 B) BeCl2 C) BF3 D) He E) PF5
Which of the following statements are correct concerning the comparison of the physical properties of pentane and diethyl ether
The pH increased from 5.8, the normal pH of a cigarette , to pH 6.4 by addition of ammonia. How many moles of ammonia are required to produce this pH change per cigarette (volume approx. 5ml)?(Assume that no unprotonated ammonia will exist at pH 6..
A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 5 g of coffee beans?
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, is a chiral compound, contains ONLY one functional group, and is a(n) alkane.
a gas mixture contains 5.6 g of N2, 1.4g of h2, and 27.6 of CH4. What is the mole fraction of h2 in the mixture
Gibbs Free Energy: Spontaneity Elemental carbon usually exists in one of two forms: graphite or diamond. It is generally believed that diamonds last forever.
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