If a sample of a substance contains 9.03 x 10^23 representative particles, how many moles does this represent?
Chemistry · High School · Tue Nov 03 2020
llm
Answered on
Formula :
Number of moles = Number of particles/Avogadro number
Number of particles = 9.03 × 10²³
Avogadro number = 6.023 × 10²³ mol‐¹
Number of moles = 9.03 × 10²³/6.023 × 10²³
= 1.499 mol
Hence, number of moles is 1.499 or 1.5 moles.