免费pH计算器
根据氢离子浓度计算溶液的pH值。
M
pH
3.00
pOH11.00
公式
## How to Calculate pH ### Formula **pH = -log10([H+])** pH ranges from 0 (very acidic) to 14 (very basic). pH 7 is neutral.
计算示例
Find the pH of a solution with [H+] = 0.001 M.
- 01pH = -log10(0.001)
- 02pH = -log10(10^-3)
- 03pH = 3
常见问题
What does pH measure?
pH measures the acidity or basicity of a solution. It is the negative base-10 logarithm of the hydrogen ion concentration.
What is the pH scale range?
Typically 0 to 14 for aqueous solutions at 25 C. Values below 7 are acidic, above 7 are basic.
Can pH be negative?
Yes, for very concentrated strong acids where [H+] > 1 M.
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