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1 mol ---- 6.022 x 10²³ moléculas
1,5 moles ---- x
x = 9.033 x 10²³ moléculas
b )
Mm K2SO4 = 174 g/mol
n (moles) = masa / Mm
m = n x Mm
m = 2 moles x 174 g/mol (SIMPLIFICAR MOLES)
m = 348 g de K2SO4