Buffering Activity

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

• Categories: Chemistry Laboratory