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Balance the following equations and indicate whether they are combination, decomposition, or combustion reactions: (b) NH4NO3(s) → N2O(g) + H2O(g) (c) Zn(OH)2(s) → ZnO(s) + H2O(l) (d) Ag2O(s) → Ag(s) + O2(g)
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Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970
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TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement146
- Ch.2 - Atoms, Molecules, and Ions200
- Ch.3 - Chemical Reactions and Reaction Stoichiometry176
- Ch.4 - Reactions in Aqueous Solution155
- Ch.5 - Thermochemistry126
- Ch.6 - Electronic Structure of Atoms131
- Ch.7 - Periodic Properties of the Elements126
- Ch.8 - Basic Concepts of Chemical Bonding123
- Ch.9 - Molecular Geometry and Bonding Theories143
- Ch.10 - Gases147
- Ch.11 - Liquids and Intermolecular Forces91
- Ch.12 - Solids and Modern Materials122
- Ch.13 - Properties of Solutions126
- Ch.14 - Chemical Kinetics174
- Ch.15 - Chemical Equilibrium101
- Ch.16 - Acid-Base Equilibria139
- Ch.17 - Additional Aspects of Aqueous Equilibria146
- Ch.18 - Chemistry of the Environment72
- Ch.19 - Chemical Thermodynamics129
- Ch.20 - Electrochemistry142
- Ch.21 - Nuclear Chemistry101
- Ch.22 - Chemistry of the Nonmetals68
- Ch.23 - Transition Metals and Coordination Chemistry66
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry10
Brown15th EditionChemistry: The Central ScienceISBN: 9780137542970Non è quello che usi tu?Cambia libro di testo
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Brown 15th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 23
Brown 15th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 23Capitolo 3, Problema 23
Determine the formula weights of each of the following compounds: (a) lead(IV) chloride (b) copper(II) oxide (c) iodic acid, HIO3 (d) sodium perchlorate, NaClO4
Guida verificata passo dopo passo1
Step 1: Identify the chemical formula for each compound. For lead(IV) chloride, the formula is PbCl4. For copper(II) oxide, the formula is CuO. For iodic acid, the formula is HIO3. For sodium perchlorate, the formula is NaClO4.
Step 2: Determine the atomic weights of each element involved in the compounds using the periodic table. For example, lead (Pb) has an atomic weight of approximately 207.2 amu, chlorine (Cl) is about 35.45 amu, copper (Cu) is about 63.55 amu, oxygen (O) is about 16.00 amu, iodine (I) is about 126.90 amu, sodium (Na) is about 22.99 amu.
Step 3: Calculate the formula weight for each compound by multiplying the atomic weight of each element by the number of atoms of that element in the formula, and then summing these values. For PbCl4, calculate (1 x 207.2) + (4 x 35.45). For CuO, calculate (1 x 63.55) + (1 x 16.00). For HIO3, calculate (1 x 126.90) + (3 x 16.00). For NaClO4, calculate (1 x 22.99) + (1 x 35.45) + (4 x 16.00).
Step 4: Add the calculated values for each element in the compound to find the total formula weight. This involves summing the products from the previous step for each compound.
Step 5: Review the calculations to ensure accuracy and consistency with the atomic weights and the chemical formulas provided. This step ensures that the formula weights are correctly determined for each compound.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Molar Mass Calculation
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a chemical formula, taking into account the number of each type of atom present. For example, in lead(IV) chloride (PbCl4), the molar mass is calculated by adding the atomic mass of lead (207.2 g/mol) to four times the atomic mass of chlorine (35.5 g/mol).
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Percorso guidato
03:12
Molar Mass Calculation Example
Chemical Nomenclature
Chemical nomenclature is the system of naming chemical compounds based on their composition and structure. It follows specific rules set by organizations like IUPAC. For instance, lead(IV) chloride indicates that lead has a +4 oxidation state, while copper(II) oxide indicates copper has a +2 oxidation state. Understanding these names helps in identifying the correct formulas and their corresponding weights.
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Percorso guidato
03:31Chemical Properties
Polyatomic Ions
Polyatomic ions are charged entities composed of two or more atoms covalently bonded, which function as a single ion. Examples include the perchlorate ion (ClO4-) in sodium perchlorate (NaClO4) and the iodate ion (IO3-) in iodic acid (HIO3). Recognizing these ions is crucial for correctly writing formulas and calculating their weights, as they often dictate the overall charge and composition of the compound.
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01:20Polyatomic Ion Variations
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