DP Chemistry (last assessment 2024)

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Question 17N.2.sl.TZ0.5b.i

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.2.sl.TZ0.5b.i
Level sl Paper 2 Time zone TZ0
Command term Identify Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
17N.2.sl.TZ0.5b.i

The equations for two acid-base reactions are given below.

HCO3– (aq) + H2O (l) ⇌ H2CO3 (aq) + OH– (aq)
HCO3– (aq) + H2O (l) ⇌ CO32– (aq) + H3O+ (aq)

(b.i)

Identify two different amphiprotic species in the above reactions.

[1]

Markscheme

HCO3– AND H2O

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