An unsaturated aqueous solution of nh3 is at 90.°c in 100. grams of water. according to reference table g, how many grams of nh3 could this unsaturated solution contain?
(1) 5 g (3) 15 g
(2) 10. g (4) 20. g

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Asolid that forms and separates from a liquid mixture is called

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?