jakkusj
jakkusj
26-05-2016
Chemistry
contestada
Calculate the number of molecules in 8.4 g of NaOH
Respuesta :
Willchemistry
Willchemistry
26-05-2016
Molar mass NaOH = 40.0 g/mol
number of moles : 8.4 / 40.0 => 0.21 moles
1 mole ---------------- 6.02 x 10²³ molecules
0.21 moles ---------- ?
molecules : ( 0.21 ) x ( 6.02 x 10²³ ) / 1
=
1.264 x 10²³ molecules
hope this helps!
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