Domanda del libro di testo
How many grams of each product result from the following reactions, and how many grams of which reactant is left over? (a)
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Ch.3 - Mass Relationships in Chemical Reactions
McMurry8th EditionChemistryISBN: 9781292336145
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TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 3, Problema 79
Sodium azide (NaN3) yields N2 gas when heated to 300 °C, a reaction used in automobile air bags. If 1.00 mol of N2 has a volume of 47.0 L under the reaction conditions, how many liters of gas can be formed by heating 38.5 g of NaN3? The reaction is
Guida verificata passo dopo passo1
Write the balanced chemical equation for the decomposition of sodium azide: 2 NaN_3 \(\rightarrow\) 2 Na + 3 N_2.
Calculate the molar mass of NaN_3 by adding the atomic masses of sodium (Na) and nitrogen (N).
Determine the number of moles of NaN_3 in 38.5 g by dividing the mass by the molar mass of NaN_3.
Use the stoichiometry of the balanced equation to find the moles of N_2 produced from the moles of NaN_3. According to the equation, 2 moles of NaN_3 produce 3 moles of N_2.
Calculate the volume of N_2 gas produced using the given volume of 1.00 mol of N_2 (47.0 L) and the moles of N_2 obtained from the stoichiometry.
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Stoichiometry
Stoichiometry is the calculation of reactants and products in chemical reactions. It involves using balanced chemical equations to determine the relationships between the amounts of substances consumed and produced. In this case, understanding the stoichiometric coefficients of sodium azide and nitrogen gas will help in calculating how much N2 can be produced from a given mass of NaN3.
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Percorso guidato
01:16
Stoichiometry Concept
Molar Mass
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). For sodium azide (NaN3), calculating its molar mass is essential to convert the mass of NaN3 (38.5 g) into moles. This conversion is necessary to apply stoichiometry and determine the volume of nitrogen gas produced from the decomposition of sodium azide.
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Percorso guidato
02:11Molar Mass Concept
Ideal Gas Law
The Ideal Gas Law relates the pressure, volume, temperature, and number of moles of a gas through the equation PV = nRT. This law allows us to calculate the volume of gas produced under specific conditions. In this scenario, knowing that 1.00 mol of N2 occupies 47.0 L at the given temperature enables us to find the volume of nitrogen gas generated from the moles of NaN3 decomposed.
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Percorso guidato
01:15Ideal Gas Law Formula
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