Calculate the pH of a solution containing 0.00001 moles of H3O per liter.
pH = -log(H3O^+)
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To calculate the pH of a solution, the concentration of H3O+ ions (also known as hydronium ions) is needed.
Given that the solution contains 0.00001 moles of H3O+ per liter, we can directly use this value as the concentration of H3O+. The concentration of a substance is denoted by the symbol "C".
The pH of a solution can be determined using the formula:
pH = -log10(C)
Substituting the concentration of H3O+ into the formula:
pH = -log10(0.00001)
To evaluate this expression, you can follow these steps:
1. Calculate the logarithm of the concentration: log10(0.00001).
This value represents the power to which 10 must be raised to equal 0.00001.
log10(0.00001) ≈ -5 (approximately)
2. Take the negative of the result obtained in step 1: -(-5) = 5
Hence, the pH of the solution containing 0.00001 moles of H3O+ per liter is 5.