4.12mL of base will it take to reach the equivalence point.
What is equivalence point?
Equivalence point is defined as the amount of titrant which added so that to neutralize the analyte in conical flask.
Moles of H3PO4 =18.6/1000 × 0.201M = 0.000374 moles
H3PO4+3NaOH⇒Na3PO4+3H2O
Ratio between H3PO4 and Noah is 1:3
moles Noah needed = 0.00037×3 = 0.00111
V= moles/ molarity =0.00111 / 0.269
V= 0.00412L
V = 4.12 mL
For more information about equivalence point please visit:
https://brainly.in/questio n/13002604
#SPJ4
