R-ATCHE-13

Systems:

• Storing pH meters

• Calibration

• Biological: Blood

  • $H_{2}CO_{3}/HCO_{3}^{-}$
  • The $H_{2}CO_{3}$ deals with changes in $OH^{-}$
  • The $HCO_{3}^{-}$ deals with changes in $H^{+}$
  • Keeps pH constant.
  • $H_{2}PO_{4}^{-}/HPO_{4}^{2-}$

Ocean Acidification

$$\begin{align} CO_{2(g)}\rightleftharpoons CO_{2(aq)} \\ CO_{2(aq)}+H_{2}O_{(l)}\rightleftharpoons H_{2}CO_{3(aq)} \textbf{ (Carbonic Acid)} \\ H_{2}CO_{3(aq)}+H_{2}O_{(l)}\rightleftharpoons H_{3}O_{(aq)}^{+}+HCO_{3(aq)}^{-} \\ HCO_{3(aq)}^{-}+H_{2}O_{(l)}\rightleftharpoons H_{3}O_{(aq)}^{+}+CO_{3(aq)}^{2-} \end{align} $$

Chapter 5 Pearson: 3.1, 3.2

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