A flask filled with water is inverted into a water bath. Hydrogen gas was introduced to the flask through a tube until it displaced all of the water in the flask. The volume of the sample was 490.0 mL at 26 °C, and the pressure in the room was 754 mm Hg. The vapor pressure of water at 26 °C is 25.2 mm Hg.
(a) Calculate the number of grams of hydrogen in the flask.
(b) Calculate how many grams of water vapor are present in the flask.
(c) Determine the density (in g L 1) of the gas mixture in the flask.

Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution

Most metamorphosis processes take place

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 .