Concept explainers
(a)
Interpretation:
The total number of atoms in the compound
(a)
Explanation of Solution
The name of the compound
The number of carbon atoms in
The number of oxygen atoms in
The total number of atoms in the compound
(b)
Interpretation:
The total number of atoms in the compound
(b)
Explanation of Solution
The name of the compound
The number of boron atoms in
The number of fluorine atoms in
The total number of atoms in the compound
(c)
Interpretation:
The total number of atoms in the compound
(c)
Explanation of Solution
The name of the compound
The number of nitrogen atoms in
The number of hydrogen atoms in
The number of oxygen atoms in
The total number of atoms in the compound
(d)
Interpretation:
The total number of atoms in the compound
(d)
Explanation of Solution
The name of the compound
The number of potassium atoms in
The number of manganese atoms in
The number of oxygen atoms in
The total number of atoms in the compound
(e)
Interpretation:
The total number of atoms in the compound
(e)
Explanation of Solution
The name of the compound
The number of calcium atoms in
The number of nitrogen atoms in
The number of oxygen atoms in
The total number of atoms in the compound
(f)
Interpretation:
The total number of atoms in the compound
(f)
Explanation of Solution
The name of the compound
The number of iron atoms in
The number of phosphorus atoms in
The number of oxygen atoms in
The total number of atoms in the compound
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Chapter 3 Solutions
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
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- 3.117 For the oxides of iron, FeO, Fe2O3, and Fe3O4, describe how you would determine which has the greatest percentage by mass of oxygen. Would you need to look up any information to solve this problem?arrow_forwardExpress the composition of each of the following compounds as the mass percents of its elements. a. formaldehyde, CH2O b. glucose, C6H12O6 c. acetic acid, HC2H3O2arrow_forward3.96 Methyl cyanoacrylate is the chemical name for the substance sold as Super Glue, and it has the chemical formula C5H5NO2. Calculate the number of molecules of this substance in a 1.0-ounce tube of Super Glue, assuming that the glue is 80% methyl cyanoacrylate by mass.arrow_forward
- Salvarsan was long thought to be a single substance. Recently, however, a mass spectrometry study of the compound shows it to be a mixture of two molecules with the same empirical formula. Each has the composition 39.37% C, 3.304% H, 8.741% O, 7.652% N, and 40.932% As. One has a molar mass of 549 g/mol and the other has a molar mass of 915 g/mol. What are the molecular formulas of the compounds?arrow_forward3.95 Cumene is a hydrocarbon, meaning that it contains only carbon and hydrogen. If this compound is 89.94% C by mass and its molar mass is 120.2 g/mol, what is its molecular formula?arrow_forwardChalky, white crystals in mineral collections are often labeled borax, which has the molecular formula Na2B4O7 10H2O, when actually they are partially dehydrated samples with the molecular formula Na2B4O7 5H2O, which is more stable under the storage conditions. Real crystals of borax are colorless and transparent. (a) Calculate the percent mass that the mineral has lost when it partially dehydrates. (b) Is the percent boron by mass the same in both compounds?arrow_forward
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