Asked by alok
H3PO4 is a tribasic acid and one of its salt is NaH2PO4.what volume of 1M NaOH solution should be added to 12g of NaH2PO4 to convert it into Na3PO4?
Answers
Answered by
DrBob222
NaH2PO4 + 2NaOH ==> Na3PO4 + 2H2O
mols NaH2PO4 = grams/molar mass = ?
Use the coefficients in the balanced equation to convert mols NaH2PO4 to mols NaOH used.
Then M NaOH = mols NaOH/L NaOH. You know mols NaOH and M NaOH, solve for L NaOH. Convert to mL if that is the unit you want.
mols NaH2PO4 = grams/molar mass = ?
Use the coefficients in the balanced equation to convert mols NaH2PO4 to mols NaOH used.
Then M NaOH = mols NaOH/L NaOH. You know mols NaOH and M NaOH, solve for L NaOH. Convert to mL if that is the unit you want.
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