Respuesta :

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Answer:

4.54 % NaOH

Explanation:

[tex]\text{Mass percent} = \dfrac{\text{Mass of component}}{\text{Total mass}} \times 100 \, \%[/tex]

Data:

Mass  of NaOH     =   11.6 g

Mass of water      =   38.4 g

Mass of solution = 250.0 g

Calculation:

[tex]\text{Mass \% NaOH} = \dfrac{\text{11.6 g NaOH}}{\text{250 g solution}} \times 100 \% = \textbf{4.54 \% NaOH}[/tex]