Asample of sodium chloride (nacl) has a mass of 17.45 g. a) calculate the number of moles of nacl in the sample. show your work. b) calculate the number of moles of each element (number of moles of na and number of moles of cl) in nacl in the sample. use your answer from part a as a starting point. show your work. i’m struggling a little bit with how to approach this problem and solve it. could someone me out? : )
Answers: 1
Chemistry, 21.06.2019 23:00, carter1809
What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen, and 48.68% fluorine? the molar mass of the compound is 156.12 g/mol
Answers: 2
Chemistry, 22.06.2019 18:30, robjaykay
The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
Chemistry, 22.06.2019 21:20, paatnguyyen
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 .
Answers: 2
Asample of sodium chloride (nacl) has a mass of 17.45 g. a) calculate the number of moles of nacl i...
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