Calculate the number of molecules in 8.4 g of NaOH
Molar mass NaOH = 40.0 g/molnumber of moles : 8.4 / 40.0 => 0.21 moles1 mole ---------------- 6.02 x 10²³ molecules0.21 moles ---------- ?molecules : ( 0.21 ) x ( 6.02 x 10²³ ) / 1= 1.264 x 10²³ moleculeshope this helps!
