Objectives:
To investigate the buffering activity of a household product
To determine the pKa’s of the acidic species in the household product
To identify the acid in the household product
Curriculum alignments:
NGSS
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass are conserved during a chemical reaction.
IB-DP
Reactivity 3.1—Proton transfer reactions
AP
8.8 Properties of Buffers
A Level
3.1.12.4 Weak acids and bases Ka for weak acids
3.1.12.5 pH curves, titrations and indicators
3.1.12.6 Buffer action