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Olá!!!
MM(NaOH) = 40g/mol
C = m / MM
C = 80g / 2L
C = 40g/L
C = MM • M
M = C / MM
M = 40g/l / 40g/mol
M = 1 mol/l
ou
n = m / MM
n = 80g / 40g/mol
n = 2 mol
M = n / V
M = 2 mol / 2L
M = 1 mol/l
MM(NaOH) = 40g/mol
C = m / MM
C = 80g / 2L
C = 40g/L
C = MM • M
M = C / MM
M = 40g/l / 40g/mol
M = 1 mol/l
ou
n = m / MM
n = 80g / 40g/mol
n = 2 mol
M = n / V
M = 2 mol / 2L
M = 1 mol/l
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