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Peq. = PM / nº (OH)⁻¹
Peq. = 40 / 1 = 40 g/eq.
N = eq. x V
eq. = 0.500 L x 3.5 eq./L
eq. = 1.75
masa = eq x Peq
masa = 1.75 eq. x 40 g/eq.
masa = 70 g de NaOH