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El frmaco tolbutamina (FW=270) tiene una absortividad molar de 703 cm-1 mol-1 Litro a 262nm. Se disuelve en agua una tableta que pesa 1,113 g

El frmaco tolbutamina (FW=270) tiene una absortividad molar de 703 cm-1 mol-1 Litro a 262nm. Se disuelve en agua una tableta que pesa 1,113 g y se diluye a un volumen de 2000 ml en un matraz volumtrico. Si la solucin muestra una absorbancia de 262 nm a 0,687 (celda de 1,0 cm de paso ptico)

a) Cul es la respuesta en % T

b) Cul es el porcentaje en masa de la tolbutamina en la tableta?

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