Given the pK_a of each acid, determine whether it is strong or weak. nitric acid, pK_a = - 2 Choose... sulfuric acid, pK_a = - 5 Choose... acetic acid, pK_a = 4.7 Choose... citric acid, pK_a = 3.1 Choose...
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This indicates a very large K_a value, meaning the acid almost completely dissociates in water. - A weak acid has a higher pK_a value (typically greater than 0 or 1). This indicates a smaller K_a value, meaning the acid only partially dissociates in water. Let's Show more…
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Given the pKa of each acid, determine whether it is strong or weak: citric acid, pKa = 3.1 acetic acid, pKa = 4.7 sulfuric acid, pKa = -5 nitric acid, pKa = -2
Nicole K.
Name Formula pKa1 pKa2 pKa3 acetic acid CH3CO2H 4.756 benzoic acid C6H5CO2H 4.204 butanoic acid C3H7CO2H 4.83 4-chlorobutanoic acid C3H6ClCO2H 4.52 crotonic acid C3H5CO2H 4.69 oxalic acid H2C2O4 1.25 3.81 phosphoric acid H3PO4 2.16 7.21 12.32 propionic acid C2H5CO2H 4.87 sulfuric acid H2SO4 strong acid 1.99 trimethylacetic acid C4H9CO2H 5.03
Sri K.
In each pair, select the stronger acid. (a) Pyruvic acid $\left(\mathrm{p} K_{\mathrm{a}}=2.49\right)$ or lactic acid $\left(p K_{s}=3.08\right)$ (b) Citric acid $\left(\mathrm{p} K_{\mathrm{a}}=3.08\right)$ or phosphoric acid $\left(p K_{a}=2.10\right)$ (c) Benzoic acid $\left(K_{\mathrm{a}}=6.5 \times 10^{-5}\right)$ or lactic acid $\left(K_{\mathrm{a}}=8.4 \times 10^{-4}\right)$ (d) Carbonic acid $\left(K_{2}=4.3 \times 10^{-7}\right)$ or boric acid $\left(K_{\mathrm{a}}=7.3 \times 10^{-10}\right)$
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