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What is the pH of 0.185M sodium phenolate (C6H5ONa), the sodium salt of phenol (Ka= 1.0 X 10-10)?
680 mL of a solution of unknown concentration is diluted to a final volume of 1700 mL where the concentration is found to be 1.2 M. What was the initial molarity
Twenty dietary iron tablets with a total mass of 22.131 g were ground and mixed thoroughly. Then 2.998 g of the powder was dissolved in concentrated HNO3 and heated to convert all the iron to Fe3+
What is the mass (in grams) of the precipitate when 8.05 g of barium nitrate reacts in solution with excess sodium carbonate
Calculate the mole ratio of iron used to copper produced. Express this ratio as a simple whole-number ratio.
5000 barrels of 28O API gas oil are blended with 20,000 bbl of 15O API fuel oil. What is the density of the mixture in lbm/gal and lbm/ft3.
state three disadvantages of the wittig
Calculate the specific rotation of the compound. A sample of 150 mg of an organic compound is dissolved in 7.5 ml of water. The solution is paced in a 20-cm polarimeter tube and the rotation measured in a polarimeter
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
Rank the following carbonyl-containing compounds in order of reactivity towards nucleophilic attack.From most reactive to least reactive
Write a balanced reaction for the acid-base reaction of diethylbenzyl phosphonate with sodium hydroxide. Which hydrogens are the most acidic?
A 6.55 g sample of aniline (C6H5NH2) was combusted in a bomb calorimeter. If the temperature rose from 22.25
Iron has a density of 7.87 g/cm3. What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 10 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)
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