H3PO4 + 3NaOH ==> Na3PO4 + 3H2O
mols H3PO4 = M x L = ?
mols NaOH = 3x that (from the coefficients in the balanced equation).
M NaOH = mols NaOH/L NaOH. You know M and mols, solve for L and change to mL.
What volume in ml of 0.0985 m NaOH solution is required to reach the end point in the complete titration of a 15.0 ml sample of 0.124 M phosphoric acid?
1 answer