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Concentración (C)=10ppm
Volumen (V)=250mL=0.25L
Masa (m)=?
Si:
1ppm=1mg/L
Entonces la concentración (C):
C=10*1mg/L=10mg/L
Cálculo de masa del ión sulfato SO₄²⁻
Masa=C*V
Masa=10mg/L*0.25L
Masa=2.5mg
Hay 2.5mg del ión sulfato SO₄²⁻.