h3po4 na3po4
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You have 1 M solutions of H3PO4, NaH2PO4, Na2HPO4, Na3PO4 (no NaOH).
=> Using only two of these solutions, how would you prepare 150 mL of 1 M phosphate buffer at pH 3.0?
131.4 mL of NaH2PO4 + 18.6 mL H3PO4
50 mL Na2HPO4 + 100 mL Na3PO4
75 mL Na2HPO4 + 75 mL Na3PO4
18.6 mL of NaH2PO4 + 131.4 mL H3PO4
calculate the amounts of each reactant required to produce 100 kg of the product Na3PO4 (assume 100% conversion).
3NaOH(aq) +H3PO4(aq) ------------> Na3PO4(aq) + 3H2O(l)
What is the concentration of the unknown H3PO4 solution? The neutralization reaction is as follows: H3PO4(aq)+3NaOH(aq)รขยย3H2O(l)+Na3PO4(aq)