Digital ACT Science Practice Question #1224
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Most acidic = lowest pH = highest $[\text{H}^+]$. Solution 1 has $[\text{H}^+] = 10^{-3}$ ($pH = 3$).
Calculate pH for each solution: • Solution 1: $\text{pH} = -\log(10^{-3}) = 3.0$ • Solution 2: $[\text{H}^+] = 10^{-14} / 10^{-4} = 10^{-10} \implies \text{pH} = 10.0$ • Solution 3: $\text{pH} = -\log(10^{-8}) = 8.0$ • Solution 4: $[\text{H...
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