## Chemistry: The Molecular Science (5th Edition)

- The more acidic solution will be the one with the higher hydronium concentration: - Carbonated beverage: $[H_3O^+] = 10^{-pH}$ $[H_3O^+] = 10^{- 2.10}$ $[H_3O^+] = 7.9 \times 10^{- 3}M$ - Lime juice: $[H_3O^+] = 1.3 \times 10^{-2}M$ Since $1.3 \times 10^{-2}M > 7.9 \times 10^{-3}M$, the lime juice is more acidic.