Concept explainers
(a)
Interpretation:
The total number of atoms in the compound
(a)
Explanation of Solution
The name of the compound
The number of cobalt atoms in
The number of chlorine 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 hydrogen atoms in
The number of nitrogen atoms in
The number of oxygen atoms in
The number of sulfur 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 carbon 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 carbon atoms in
The number of hydrogen atoms in
The number of oxygen atoms in
The total number of atoms in the compound
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Chapter 3 Solutions
FOUND.OF COLLEGE CHEMISTRY
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- A compound associated with the odor of garlic on a persons breath has the chemical formula CyH8S and a formula mass of 88.19 amu. What number does y stand for in the chemical formula of the compound?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_forwardAtomic masses are relative masses. What does this mean?arrow_forward
- 4-102 Aspartame, an artificial sweetener used as a sugar substitute in some foods and beverages, has the molecular formula C14H18N2O5. (a) How many mg of aspartame are present in 3.72 × 1026 molecules of aspartame? (b) Imagine you obtain 25.0 mL of aspartame, which is known to have a density of 1.35 g/mL. How many molecules of aspartame are present in this volume? (c) How many hydrogen atoms are present in 1.00 mg of aspartame? (d) Complete the skeletal structure of aspartame, where all the bonded atoms are shown but double bonds, triple bonds, and/or lone pairs are missing. (e) Identify the various types of geometries present in each central atom of aspartame using VSEPR theory. (f) Determine the various relative bond angles associated with each central atom of aspartame using VSEPR theory. (g) What is the most polar bond in aspartame? (h) Would you predict aspartame to be polar or nonpolar? (i) Is aspartame expected to possess resonance? Explain why or why not. (j) Consider the combustion of aspartame, which results in formation of NO2(g) as well as other expected products. Write a balanced chemical equation for this reaction. (k) Calculate the weight of C02(g) that can be prepared from 1.62 g of aspartame mixed with 2.11 g of oxygen gas.arrow_forwardA student weighs a sample of carbon on a balance that is accurate to 0.001 g. (a) How many atoms are in 0.001 g of C?(b) The carbon is used in the following reaction: Pb₃O₄(s) +C(s)→3PbO(s) +CO(g) What mass difference in the lead(II) oxide would be caused by an error in the carbon mass of 0.001 g?arrow_forward1.Which of the following statements about a compound is incorrect? (a) A molecule of a compound has atoms of different elements. (b) A compound cannot be separated into its constituent elements by physical methods of separation. (c) A compound retains the physical properties of its constituent elements. (d) The ratio of atoms of different elements in a compound is fixed. Which of the following statements is correct about the reaction given below? 4Fe + 3O2 → 2Fe2O3 (a) Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore it follows law of conservation of mass. (b) Total mass of reactants = total mass of product, therefore, law of multiple proportions is followed. (c) Amount of Fe2O3 can be increased by taking any one of the reactants (iron or oxygen) in excess. (d) Amount of Fe2O3 produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess.arrow_forward
- Which compound of calcium is used for swimming pool water and sewage treatment? (A) Calcium hydroxide, Ca(OH)2 (B) Calcium hypochlorite, Ca(OCl)2 (C) Calcium carbonate, CaCO3 (D) Calcium oxide, CaOarrow_forwardA compound has the composition of 54.53% Carbon, 9.15% Hydrogen, and 36.32% Oxygen, by mass. If the molar mass is 88.1 g/mol, what is its molecular formula? (A) C2H4O (B) C4H8O2 (C) C6H10O2 (D) C6H12O3arrow_forward(c) Argon d) Fluorine 6. The number of nonmetal atoms in Al2(SO4)3 (a) 2 15 (b) (c) 12 (d) 8 7. Which of the following properties of water is not a (a) Water normally boils at 100°Carrow_forward
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