How many moles of HCl are represented by 1.0 * 10¹⁹ HCl molecules A) 1.7 * 10^-5 mol B) 1.5 * 10^-3 mol C) 1.0 * 10¹⁹ mol D) 37 mol E) 6.0 * 10⁴ mol

Question

Quizplus · Accepted Answer

The number of moles of a substance is calculated by dividing the number of molecules by Avogadro's number (approximately $6.022 \times 10^{23}$ molecules/mol). The given number of molecules ($1.0 \times 10^{19}$) divided by Avogadro's number results in approximately $1.7 \times 10^{-5}$ moles, making option A correct.

How Many Moles of HCl Are Represented by 1