THE CONCENTRATION OF HYDROGEN ION IN TWO SOLUTION ARE 1X10-14mol dm3 and 5x10-9 mol dm3.what is the ph of each solution
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pH = -log(H^+). Plug in H^+ and solve.
By the way, all caps makes it hard to read.
To calculate the pH of a solution, you need to take the negative logarithm of the hydrogen ion concentration (H+). The pH scale ranges from 0 to 14, with 0 being highly acidic, 7 being neutral, and 14 being highly basic.
Let's calculate the pH of each solution using the given hydrogen ion concentrations:
1. Solution 1: Hydrogen ion concentration (H+) = 1x10^(-14) mol/dm³
- Take the negative logarithm (base 10) of the concentration:
- pH = -log[H+]
- pH = -log(1x10^(-14))
- Using the logarithm property log(a^b) = b * log(a):
- pH = -(-14 * log(10))
- Since log(10) = 1, the negative sign becomes positive:
- pH = 14
- Therefore, Solution 1 has a pH of 14, which is highly basic.
2. Solution 2: Hydrogen ion concentration (H+) = 5x10^(-9) mol/dm³
- Repeat the same calculation for Solution 2:
- pH = -log[H+]
- pH = -log(5x10^(-9))
- Using the logarithm property:
- pH = -(-9 * log(5))
- Calculate log(5):
- pH = -(-9 * 0.7)
- Multiply the values and flip the sign:
- pH ≈ 9.8
- Therefore, Solution 2 has a pH of 9.8, which is slightly basic.
In summary, the pH of Solution 1 is 14 (highly basic) and the pH of Solution 2 is 9.8 (slightly basic).