Lithium metal reacts with molecular oxygen gas to form lithium oxide. A closed container of volume 8.00 x 103 mL contains oxygen gas at 99.8 °C and 2.12 x 103 Torr. Then 11.5 g of solid lithium is introduced, and the reaction goes to completion. What is the final pressure (in Torr) if the temperature rises to 168.1 °C?

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .