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:
Fe(s) +CuSO₄(aq)→Cu(s) +FeSO₄(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 250mL 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 70mg.
Calculate the original concentration of copper(II) sulfate in the sample. Be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 22.06.2019 11:30
Which statement best describes the flow of energy in this scenario
Answers: 1
Chemistry, 22.06.2019 12:10
Building glycogen from glucose molecules is an example of
Answers: 3
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
One way in which the useful metal copper is produced is by dissolving the mineral azurite, which con...
Chemistry, 28.07.2019 11:00
Computers and Technology, 28.07.2019 11:00
Mathematics, 28.07.2019 11:00
Business, 28.07.2019 11:00
History, 28.07.2019 11:00
Chemistry, 28.07.2019 11:00
Biology, 28.07.2019 11:00
Chemistry, 28.07.2019 11:00
English, 28.07.2019 11:00