Skip to main content
Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoBrown 14th EditionCh.3 - Chemical Reactions and Reaction StoichiometryProblema 41c
Capitolo 3, Problema 41c

A sample of glucose, C6H12O6, contains 1.250×1021 carbon atoms. (c) How many moles of glucose does it contain?

Guida verificata passo dopo passo
1
Determine the number of moles of carbon atoms using Avogadro's number. Avogadro's number is 6.022 \(\times\) 10^{23} atoms/mol.
Calculate the moles of carbon atoms by dividing the given number of carbon atoms (1.250 \(\times\) 10^{21}) by Avogadro's number.
Recognize that each molecule of glucose (C_6H_{12}O_6) contains 6 carbon atoms.
Calculate the moles of glucose by dividing the moles of carbon atoms by 6, since there are 6 carbon atoms per molecule of glucose.
Conclude with the moles of glucose calculated from the moles of carbon atoms.

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:
1m

Concetti chiave

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

Mole Concept

The mole is a fundamental unit in chemistry that quantifies the amount of substance. One mole contains approximately 6.022 x 10²³ entities, such as atoms or molecules. This concept allows chemists to convert between the mass of a substance and the number of particles it contains, facilitating calculations in stoichiometry.
Video consigliato:
Percorso guidato
01:25
Mole Concept

Avogadro's Number

Avogadro's number, 6.022 x 10²³, is the number of atoms, molecules, or particles in one mole of a substance. It serves as a bridge between the macroscopic scale of substances we can measure and the microscopic scale of atoms and molecules. Understanding this number is crucial for converting between moles and the number of particles.
Video consigliato:
Percorso guidato
02:11
Avogadro's Law

Molar Mass

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). For glucose (C₆H₁₂O₆), the molar mass can be calculated by summing the atomic masses of its constituent elements. Knowing the molar mass is essential for converting between grams and moles, which is necessary for solving problems involving quantities of substances.
Video consigliato:
Percorso guidato
02:11
Molar Mass Concept
Pratica correlata
Domanda del libro di testo

The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (c) How many molecules of aspartame are present in 1.00 mg of aspartame?

1173
views
Domanda del libro di testo

The allowable concentration level of vinyl chloride, C2H3Cl, in the atmosphere in a chemical plant is 2.0×10−6 g/L. How many moles of vinyl chloride in each liter does this represent?

1334
views
Domanda del libro di testo

A sample of the male sex hormone testosterone, C19H28O2, contains 3.88×1021 hydrogen atoms. (b) How many molecules of testosterone does it contain?

1785
views
Domanda del libro di testo

The molecular formula of aspartame, the artificial sweetener marketed as NutraSweet®, is C14H18N2O5. (d) How many hydrogen atoms are present in 1.00 mg of aspartame?

1025
views
Domanda del libro di testo

A sample of the male sex hormone testosterone, C19H28O2, contains 3.88×1021 hydrogen atoms. (c) How many moles of testosterone does it contain? (d) What is the mass of this sample in grams?

1
views