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Which of the following substances contains the greatest mass of chlorine? (a) $5.0 \mathrm{g}\ \mathrm{Cl}_{2},$ (b) $60.0\ \mathrm{g}$ $\mathrm{NaClO}_{3},(\mathrm{c}) \quad 0.10$ mol $\mathrm{KCl},$ (d) $30.0\ \mathrm{g} \ \mathrm{MgCl}_{2}$(e) $0.50\ \mathrm{mol}\ \mathrm{Cl}_{2}$

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The substance with greatest mass of chlorine is $\mathrm{Cl}_{2}$

Chemistry 101

Chapter 3

Mass Relationships in Chemical Reactions

Chemical reactions and Stoichiometry

Carleton College

University of Maryland - University College

University of Toronto

Lectures

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A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity. Chemical reactions are usually characterized by a chemical change, and they yield one or more products after the reaction is complete. Chemical reactions are described with chemical equations, which symbolically present the starting materials, end products, and sometimes intermediate products and reaction conditions. Chemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration. Typically, reaction rates increase with increasing temperature because there is more thermal energy available to reach the activation energy necessary for breaking bonds between atoms.

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Here we have to find with substance, contains the greatest mass of chlorine part. A the mass of chlorine is mass of chlorine is equal to 5 gram in part b, the mass of n, a c l o 3 is 60 grams. The molar mass of a c l, o 3 is molar mass of n a c l o 3 is equal to molar mass of sodium plus molar mass of chlorine plus 3 into molar. Mass of oxygen is equal to molar. Mass of sodium is 22.990 gram per mole, plus molar mass of chlorine is 35.453 gram per mole plus 3 into molar. Mass of oxygen is 15.999 gram per mole, so the calculated molar mass of n, a c l o 3 is 106.440 gram per mole. The percent by mass of chlorine is percent by mass of chlorine is percent. Chlorine is equal to 35.453 gram per mole divided by 106.440. Gram per mole into 100 percent is equal to 33.31 percent and thereforethe mass of chlorine is. Mass of chlorine is equal to 60 gram into 33.31 percent is equal to 19.99 gram and given information for part c, the molar mass of k, c l is 0.10. Since 1, mole of ccl contains 1 mole of c lone mole of k. C l contains 1 mole of c l c. L, 0.10 moles of k, c l contains 0.10 moles of cl thereforethe mass of chlorine is mass of chlorine is equal to a number of moles of chlorine into molar. Mass of chlorine is equal to 0.10 mole in 2. Molar mass of chlorine is 35.453. Gram per mole is equal to 3.545 gram, mass of chlorine and given information for part, the mass of magnesium chloride m g c. L 2 is 3030 g. The molar mass, the molar mass of magnesium chloride is, is equal to molar mass of magnesium plus 2 into molar. Mass of chlorine is equal to 24.305 gram per mole plus 2 into 35.453. Gram per mole is equal to 95.211 gram per per mole. The percent by mass of chlorine is person by mass of chlorine is equal to 2 into 35.453 gram per mole divided by molar. Mass is 95.211 gram per mole into 100 percent is equal to 74.47 percent, is both sarcasm with each other, and therefore the mass of chlorine is therefore the mass of chlorine is mass of chlorine is equal to 30 g into 7447 percent is equal to 22.34. Gram. Is the mass of chlorine given information for part e? The number of moles of c l 2 is 0.50 and the molar mass of chlorine is chlorine? Is the molar mass of chlorine is equal to 2 into 35.453 gram? Gram per mole plus molar mass of molar mass of chlorine is 2 into 35.453. Gram per mole is equal to 70.906. Gram per mole is the molar mass of chlorine, and therefore the mass of chlorine is chlorine is, is equal to 0.50 gram per mole into 70.906. Gram per mole is equal to 35.453. Gram per mole is the i'm sorry. Sorry he is, the value is 35.453. Gram. Is the mass of chlorine and care for the substance there for the substance with the greatest mass of chlorine is c? L. 2.

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