Domanda del libro di testo
Obtain a bottle of aspirin and identify the amount of active ingredient (acetylsalicylic acid, C9H8O4) per tablet.
How many moles of aspirin are in one tablet?
1838
views
6. Chemical Composition
Mole Concept
2:06 minutiProblema 82
Domanda del libro di testo
Ibuprofen, an anti-inflammatory drug in Advil, has the formula C₁₃H₁₈O₂ (7.1, 7.2, 7.3) d. How many moles of ibuprofen contain 1.22 x 10²³ atoms of C?
Guida verificata passo dopo passo1
Identify the number of carbon atoms in one molecule of ibuprofen, which is given by the formula C_{13}H_{18}O_{2}.
Use Avogadro's number (6.022 \(\times\) 10^{23} atoms/mol) to determine the number of moles of carbon atoms in 1.22 \(\times\) 10^{23} atoms of C.
Calculate the moles of carbon atoms by dividing the given number of carbon atoms (1.22 \(\times\) 10^{23}) by Avogadro's number.
Since each molecule of ibuprofen contains 13 carbon atoms, determine the moles of ibuprofen by dividing the moles of carbon atoms by 13.
Express the final answer in terms of moles of ibuprofen.
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.
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
Molecular Formula
The molecular formula of a compound indicates the number and type of atoms present in a molecule. For ibuprofen, C₁₃H₁₈O₂ signifies that each molecule contains 13 carbon (C) atoms, 18 hydrogen (H) atoms, and 2 oxygen (O) atoms. Understanding the molecular formula is essential for determining the composition and performing calculations related to the substance.
Video consigliato:
Percorso guidato
02:08Molecular Formula
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 moles of substances involved in a reaction based on their molecular formulas. In this case, stoichiometry helps determine how many moles of ibuprofen correspond to a specific number of carbon atoms.
Video consigliato:
Percorso guidato
01:16Stoichiometry
Video correlati
Pratica correlata