Achemist adds 395.0 ml of a 1.4m sodium chloride (naci) solution to a reaction flask. calculate the mass in grams of sodium chloride the chemist has added to the flask. round your answer to 2 significant digits. 10

What’s the percent by mass of carbon in c10h14n2

An observation that requires measurement is called quantitative observable or qualitative

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.