Domanda del libro di testo
Calculate the percentage by mass of the indicated element in the following compounds: (d) nitrogen in epinephrine, C9H13NO3 , also known as adrenalin, a hormone that is important for the fightor- flight response
517
views
Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Introduction: Matter, Energy, and Measurement177
- Ch.2 - Atoms, Molecules, and Ions231
- Ch.3 - Chemical Reactions and Reaction Stoichiometry216
- Ch.4 - Reactions in Aqueous Solution189
- Ch.5 - Thermochemistry175
- Ch.6 - Electronic Structure of Atoms168
- Ch.7 - Periodic Properties of the Elements150
- Ch.8 - Basic Concepts of Chemical Bonding177
- Ch.9 - Molecular Geometry and Bonding Theories200
- Ch.10 - Gases179
- Ch.11 - Liquids and Intermolecular Forces113
- Ch.12 - Solids and Modern Materials154
- Ch.13 - Properties of Solutions157
- Ch.14 - Chemical Kinetics199
- Ch.15 - Chemical Equilibrium128
- Ch.16 - Acid-Base Equilibria164
- Ch.17 - Additional Aspects of Aqueous Equilibria163
- Ch.18 - Chemistry of the Environment105
- Ch.19 - Chemical Thermodynamics164
- Ch.20 - Electrochemistry171
- Ch.21 - Nuclear Chemistry122
- Ch.22 - Chemistry of the Nonmetals82
- Ch.23 - Transition Metals and Coordination Chemistry79
- Ch.24 - The Chemistry of Life: Organic and Biological Chemistry16
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 26e
Brown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 26eCapitolo 3, Problema 26e
Calculate the percentage by mass of the indicated element in the following compounds: (e) oxygen in the insect pheromone sulcatol, C8H16O
Guida verificata passo dopo passo1
Step 1: First, we need to calculate the molar mass of the compound sulcatol, C8H16O. The molar mass of carbon (C) is approximately 12.01 g/mol, hydrogen (H) is approximately 1.01 g/mol, and oxygen (O) is approximately 16.00 g/mol. The molar mass of sulcatol is the sum of the molar masses of all the atoms in the formula, which is (8 * molar mass of C) + (16 * molar mass of H) + (1 * molar mass of O).
Step 2: Next, we calculate the molar mass of the oxygen in the compound. Since there is only one oxygen atom in the formula, the molar mass of oxygen in the compound is simply the molar mass of oxygen, which is 16.00 g/mol.
Step 3: Now, we calculate the percentage by mass of oxygen in the compound. The formula for this is (molar mass of element / molar mass of compound) * 100%.
Step 4: Substitute the molar mass of oxygen and the molar mass of sulcatol into the formula from step 3 to find the percentage by mass of oxygen in sulcatol.
Step 5: The result from step 4 is the percentage by mass of oxygen in the compound sulcatol. Remember to express your answer as a percentage.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Molar Mass
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 the atoms in a chemical formula. For example, in sulcatol (C8H16O), the molar mass is determined by adding the molar masses of 8 carbon (C), 16 hydrogen (H), and 1 oxygen (O) atom.
Video consigliato:
Percorso guidato
02:11
Molar Mass Concept
Percentage by Mass
Percentage by mass is a way to express the concentration of an element in a compound. It is calculated by dividing the mass of the element in one mole of the compound by the total molar mass of the compound, then multiplying by 100. This gives a clear representation of how much of the compound's mass is contributed by the specific element.
Video consigliato:
Percorso guidato
00:38Mass Percent Calculation
Chemical Formula Interpretation
Interpreting a chemical formula involves understanding the composition of a compound based on the symbols and subscripts used. In the formula C8H16O, the subscripts indicate the number of each type of atom present: 8 carbon atoms, 16 hydrogen atoms, and 1 oxygen atom. This information is crucial for calculating molar mass and subsequently the percentage by mass of any element.
Video consigliato:
Percorso guidato
03:13Intepreting the Band of Stability
Pratica correlata
Domanda del libro di testo
Calculate the percentage by mass of the indicated element in the following compounds: (c) sulphur in magnesium sulphate, MgSO4, a substance used as a drying agent
668
views
Domanda del libro di testo
Calculate the percentage by mass of the indicated element in the following compounds: (b) oxygen in vitamin E, C29H50O2
471
views
Domanda del libro di testo
Calculate the percentage of carbon by mass in each of the compounds represented by the following models: (a)
395
views
Domanda del libro di testo
Calculate the percentage by mass of the indicated element in the following compounds: (f) carbon in sucrose, C12H22O11, the compound that is responsible for the sweet taste of table sugar.
535
views
Domanda del libro di testo
Based on the following structural formulas, calculate the percentage of carbon by mass present in each compound: (a) Benzaldehyde (almond fragrance) (b) Vanillin (vanilla flavor) c) Isopentyl acetate (banana flavor)
700
views