Answer :
Approximately 2.72 moles of propanol (C₃H₈O) are represented by 1.64 × 10²⁴ molecules. This calculation uses Avogadro's number (6.022 × 10²³ particles/mol) to convert molecules to moles.
Avogadro's number states that one mole of any substance contains approximately 6.022 × 10²³ particles (atoms, molecules). Given 1.64 × 10²⁴ molecules of propanol (C₃H₈O), we can convert this number of molecules into moles using Avogadro's number.
By dividing the given number of molecules by Avogadro's number, we find the corresponding number of moles of propanol:
Moles = Number of molecules / Avogadro's Number
Substituting the values, Moles = 1.64 × 10²⁴ molecules / 6.022 × 10²³ molecules/mol ≈ 2.72 moles.
This calculation reveals that there are approximately 2.72 moles of propanol (C₃H₈O) in a sample containing 1.64 × 10²⁴ molecules of the substance. The concept of moles and Avogadro's number is fundamental in converting between the microscopic level of individual particles and the macroscopic level of mass and volume in chemistry.
To learn more about Avogadro's number here
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