Skip to main content
Ch.3 - Molecules and Compounds
Tro - Chemistry: A Molecular Approach 5th Edition
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 5th EditionCh.3 - Molecules and CompoundsProblema 81d
Capitolo 3, Problema 81d

Determine the number of moles of hydrogen atoms in each sample. d. 1.87 mol C8H18

Guida verificata passo dopo passo
1
Identify the chemical formula of the compound, which is \( \text{C}_8\text{H}_{18} \).
Determine the number of hydrogen atoms in one molecule of \( \text{C}_8\text{H}_{18} \). There are 18 hydrogen atoms per molecule.
Use the given amount of moles of \( \text{C}_8\text{H}_{18} \), which is 1.87 mol.
Calculate the total number of moles of hydrogen atoms by multiplying the moles of \( \text{C}_8\text{H}_{18} \) by the number of hydrogen atoms per molecule: \( 1.87 \text{ mol} \times 18 \text{ H atoms/molecule} \).
The result will give you the total moles of hydrogen atoms in the sample.

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:
44s

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Moles and Avogadro's Number

A mole is a unit in chemistry that represents 6.022 x 10^23 entities, such as atoms or molecules. This concept is fundamental for quantifying substances in chemical reactions and allows chemists to convert between the mass of a substance and the number of particles it contains.
Video consigliato:
Percorso guidato
02:41
Moles and Particles Conversion

Molecular Formula

The molecular formula of a compound indicates the number and type of atoms present in a molecule. For example, C8H18 (octane) contains 8 carbon atoms and 18 hydrogen atoms. Understanding the molecular formula is essential for determining the composition of a substance and calculating the number of moles of its constituent atoms.
Video consigliato:
Percorso guidato
02:08
Determining Molecular Formulas

Stoichiometry

Stoichiometry is the area of chemistry that deals with the relationships between the quantities of reactants and products in chemical reactions. It allows for the calculation of the number of moles of different substances involved in a reaction, which is crucial for solving problems related to chemical quantities, such as finding the number of moles of hydrogen atoms in a given sample.
Video consigliato:
Percorso guidato
01:16
Stoichiometry Concept
Pratica correlata
Domanda del libro di testo

Determine the number of moles of hydrogen atoms in each sample. a. 0.0885 mol C4H10 b. 1.3 mol CH4

3429
views
Domanda del libro di testo

Calculate mass (in grams) of sodium in 8.5 g of each sodium containing food additive. a. NaCl (table salt) b. Na3PO4 (sodium phosphate) c. NaC7H5O2 (sodium benzoate) d. Na2C6H6O7 (sodium hydrogen citrate)

1921
views
Domanda del libro di testo

Determine the number of moles of oxygen atoms in each sample. a. 4.88 mol H2O2 b. 2.15 mol N2O c. 0.0237 mol H2CO3 d. 24.1 mol CO2

3869
views
1
comments
Domanda del libro di testo

Determine the number of moles of hydrogen atoms in each sample. c. 2.4 mol C6H12

1527
views
Domanda del libro di testo

Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC). a. CF2Cl2 c. C2F3Cl3 d. CF3Cl

366
views
Domanda del libro di testo

Write a ratio showing the relationship between the molar amounts of each element for each compound. (See Appendix IIA for color codes.) (a)

577
views