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
- White phosphorus, P4, is prepared by fusing calcium phosphate, Ca3(PO4)2, with carbon, C, and sand, SiO2, in an electric furnace. 2Ca3(PO4)2(s)+6SiO2(s)+10C(s)P4(g)+6CaSiO3(l)+10CO(g) How many grams of calcium phosphate are required to give 30.0 g of phosphorus?arrow_forwardThe active ingredient in Pepto-Bismo® (an over- the-counter remedy for an upset stomach) is bismuth sub-salicylate, C7H5BiO4. Analysis of a 1.7500-g sample of Pepto-Bismol yields 346 mg of bismuth. What percent by mass is bismuth subsalicylate in the sample? (Assume that there are no other bismuth-containing compounds in Pepto-Bismol.)arrow_forwardNitrogen fixation in the root nodules of peas and other legumes occurs with a reaction involving a molybdenum-containing enzyme named nitrogenase. This enzyme contains two Mo atoms per molecule and is 0.0872% Mo by mass. Calculate the molar mass of the enzyme.arrow_forward
- The structure of one of the bases in DNA, adenine, is shown here. Which represents the greater mass: 40.0 g of adenine or 3.0 1023 molecules of the compound?arrow_forwardPhosphoric acid, H3PO4, can be prepared by the reaction of phosphorus(V) oxide, P4O10, with water. 14P4O10(s)+32H2O(l)H3PO4(aq);H=96.2kJ What is H for the reaction involving 1 mol of P4O10? P4O10(s)+6H2O(l)4H3PO4(aq)arrow_forwardTungsten (W) metal, which is used to make incandescent bulb filaments, is produced by the reaction WO3+3H23H2O+W How many grams of H2 are needed to produce 1.00 g of W?arrow_forward
- A sample of sandstone consists of silica, SiO2, and calcite, CaCO3. When the sandstone is heated, calcium carbonate, CaCO3, decomposes into calcium oxide, CaO, and carbon dioxide CaCO3(s)CaO(s)+CO2(g) What is the percentage of silica in the sandstone if 18.7 mg of the rock yields 3.95 mg of carbon dioxide?arrow_forward3.117 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_forward
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