Chemistry, 02.10.2020 16:01 tornadowolfcosplay

O padrão primário hidrogenoftalato de potássio (ou biftalato de potássio ou ftalato ácido de potássio, KHC 8 H 4 O 4 ) foi utilizado para padronizar uma solução de hidróxido de sódio. Para massas do padrão
iguais a 0,3425 g, 03505 g e 0,3287 g foram gastos respectivamente 25,55 mL, 26,70 mL e 24,35 mL da
solução alcalina. Determine a concentração da solução padronizada com os algarismos significativos.

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