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The following are some typical solvents used for recrystallization and dissolution of various organic compounds. Give their structures (line drawings are acceptable) and their boiling points.
(a) methanol
(b) ethanol
(c) pentane
(d) 2-propanone
(e) acetic acid
(f) ethyl acetate
(g) dichloromethane (methylene chloride)
(h) dimethyl sulfoxide
What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior. Express your answer numerically in atmospheres.
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Consider a metal atom surrounded by the cube- shaped arrangement of eight ligand atoms (Oh symmetry). 1. Derive the reducible representation for the 8 sigma-bonds.
If the sample reacted completely and produced 1931 mL of H2S hydrogen sulfide at 29.82 °C and 759.7 mm Hg, determine the mass percentage of Cadmium sulfide in the mixture?
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.1 L of 0.20 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.82
A volume of water was delivered using a buret and experimentally determined to have a mass of 2.00-g. What was the final volume of water on the buret if the inital was 0.44-mL? [assume the density of water is 1.00g/mL]
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Use IUPAC rules to draw and/or name the following organic molecules. (you can draw the carbon chains only with functional groups...)
A buffer is made up 0.24 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, and 0.17 M of sodium propanoate, CH3CH2COONa. What is the pH of the solution.
A stearic acid molecule consists of 18 carbon atoms linked together. Assuming that the thickness, t, of a monolayer is equal to the length of the stearic acid molecule, what is the size diameter of a carbon atom, s =t/18.
For [Co(en)(NH3)2Cl2]ClO4 identify the coordination number of cobalt, the coordination geometry for cobalt, the oxidation number of cobalt, the number of unpaired electrons
compound x has the formula c8h14.x reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst
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