HanahJai
HanahJai
22-10-2016
Chemistry
contestada
how many molecules are in 450g of NaNO3?
Respuesta :
Willchemistry
Willchemistry
23-10-2016
molar mass NaNO3 = 84.99 g/mol
1 mole NaNO3 ----------- 84.99 g
?? moles NaNO3 -------- 450 g
450 x 1 / 84.99 => 5.294 moles
1 mole --------------- 6.02x10²³ molecules
5.294 moles ------- ??
5.294 x ( 6.02x10²³) / 1
=>
3.18x10²⁴ molecules
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