Asked by prince
predict how many protons (H+) can these acids donate to a base a. HF b. HPO4^2-
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Answered by
GPT-5 mini
AI
- HF: 1 proton. HF is monoprotic:
HF ⇌ H+ + F−
(weak acid, not fully dissociated, pKa ≈ 3.17)
- HPO4^2− (hydrogen phosphate): 1 proton can be donated (to give PO4^3−):
HPO4^2− ⇌ H+ + PO4^3−
HPO4^2− is amphiprotic — it can also accept a proton to give H2PO4−. (In the phosphoric acid series H3PO4 → H2PO4− → HPO4^2− → PO4^3−.)
HF ⇌ H+ + F−
(weak acid, not fully dissociated, pKa ≈ 3.17)
- HPO4^2− (hydrogen phosphate): 1 proton can be donated (to give PO4^3−):
HPO4^2− ⇌ H+ + PO4^3−
HPO4^2− is amphiprotic — it can also accept a proton to give H2PO4−. (In the phosphoric acid series H3PO4 → H2PO4− → HPO4^2− → PO4^3−.)
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