CH-2139
Titration calculations
Chemistry · Secondary 4 · Hard · Titration calculations
A student titrates 30.0 cm³ of sodium hydroxide with 0.250 mol/dm³ phosphoric acid, H₃PO₄.
The equation is
H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O.
If 12.0 cm³ of the acid is needed, what is the concentration of the NaOH solution?
The equation is
H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O.
If 12.0 cm³ of the acid is needed, what is the concentration of the NaOH solution?
- 0.300 mol/dm³
- 0.125 mol/dm³
- 0.0750 mol/dm³
- 0.225 mol/dm³
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.