Produto Iônico Kw
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
The Ionic Product Kw Calculator is an online tool that allows you to calculate the ionic product of water (Kw) from the concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻). The ionic product is a constant that expresses the relationship between these two ionic species in an aqueous solution. The formula to calculate Kw is simple: Kw = [H⁺][OH⁻].
This calculator is useful in various situations, such as in chemistry laboratories, where it is necessary to determine the acidity or basicity of a solution. The ionic product of water is a fundamental quantity to understand the behavior of aqueous solutions and is used in many chemical calculations. Additionally, it is essential to remember that temperature affects the value of Kw.
When using this calculator, it is crucial to pay attention to the units of measurement and ensure that concentrations are expressed in moles per liter (mol/L). Furthermore, it is essential to remember that the ionic product of water is a constant that varies with temperature. At 25°C, the value of Kw is approximately 10⁻¹⁴.
With this calculator, you can save time and effort in routine calculations and ensure accurate results. Additionally, it is a useful tool for students and professionals working with chemistry who need to calculate the ionic product of water quickly and easily.
Frequently asked questions
What is the ionic product of water (Kw)?
The ionic product of water (Kw) is a constant that expresses the relationship between the concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻) in an aqueous solution.
How to calculate Kw?
Kw can be calculated using the formula: Kw = [H⁺][OH⁻].
What is the value of Kw at 25°C?
At 25°C, the value of Kw is approximately 10⁻¹⁴.
Why is it important to consider temperature when calculating Kw?
Temperature affects the value of Kw, so it is essential to consider temperature when calculating the ionic product of water.
What are the units of measurement for H⁺ and OH⁻ concentrations?
H⁺ and OH⁻ concentrations should be expressed in moles per liter (mol/L).