Asked by Amee
A 5.00-mL sample of an H3 PO4 solution of unknown concentration is titrated with a
0.1003 M NaOH solution. A volume of 6.55 mL of the NaOH solution was required to
reach the endpoint. What is the concentration of the unknown H3 PO4 solution?
0.1003 M NaOH solution. A volume of 6.55 mL of the NaOH solution was required to
reach the endpoint. What is the concentration of the unknown H3 PO4 solution?
Answers
Answered by
DrBob222
Which end point? #1, #2, or #3.
We'll assume you titrated all of it.
H3PO4 + 3NaOH ==> Na3PO4 + 3H2O
mols NaOH = M x L = ?
Convert mols NaOH to mols H3PO4 using the coefficients in the balanced equation.
Then M H3PO4 = mols H3PO4/L H3PO4.
We'll assume you titrated all of it.
H3PO4 + 3NaOH ==> Na3PO4 + 3H2O
mols NaOH = M x L = ?
Convert mols NaOH to mols H3PO4 using the coefficients in the balanced equation.
Then M H3PO4 = mols H3PO4/L H3PO4.
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