How many molecules of ethanol, C₂H₅OH, are contained in 150. gram sample?

Question

Quizplus · Accepted Answer

First, we need to calculate the molar mass of ethanol (C2H5OH). The molar mass is approximately 46 g/mol. Then, using the formula: number of moles = mass / molar mass, we find that 150 g of ethanol is equivalent to approximately 3.26 moles. Since Avogadro's number is 6.02 x 10^23 molecules/mol, the total number of molecules in 150 g of ethanol is 3.26 moles x 6.02 x 10^23 molecules/mol = 1.96 x 10^24 molecules.

How Many Molecules of Ethanol, C2H5OH, Are Contained in 150

How Many Molecules of Ethanol, C₂H₅OH, Are Contained in 150