chem question help?
A 25.0 mL sample of an unknown HClO4 solution requires 42.3 mL of 0.107 M NaOH for complete neutralization. What was the concentration of the unknown HClO4 solution? The neutralization reaction is
- hcbiochemLv 71 month ago
Moles NaOH = 0.0423 L X 0.107 mol/L = 4.526X10^-3 mol NaOH
From the stoichiometry of the reaction, moles NaOH = moles HClO4
Molarity HClO4 = 4.526X10^-3 mol / 0.025 L = 0.181 M