DP Chemistry (last assessment 2024)

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Question 21N.2.sl.TZ0.a

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.2.sl.TZ0.a
Level sl Paper 2 Time zone TZ0
Command term Formulate Question number a Adapted from N/A
a.
[Maximum mark: 1]
21N.2.sl.TZ0.a

Phosphoric acid, H3PO4, can undergo stepwise neutralization, forming amphiprotic species.

Formulate an equation for the reaction of one mole of phosphoric acid with one mole of sodium hydroxide.

[1]

Markscheme

H3PO4 (aq) + NaOH (aq) → NaH2PO4 (aq) + H2O (l) ✔


Accept net ionic equation.

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