Calculate pH, pOH, [H⁺], and [OH⁻]
Calculate pH, pOH, [H⁺], or [OH⁻] from any one value. Input concentration or ion activity to solve for missing variables. Automatically handles strong and weak acids/bases using provided Ka or Kb values.
Showing 321–340 of 1,000 ranked alternatives.
Phan Nhat Đang
Calculate , track , save data
Calculate with customizable inputs. Track investment over time. Save calculation history. View visual charts for annual returns. Simulate different scenarios to plan financial goals.
App Crab OOO
Solve tasks offline
Solve problems by entering given and find parameters. Provides step-by-step explanations and answers. Supports tasks involving formulas, solutions, mixtures, reaction equations, and excess/lack calculations. Finds reaction equations based on input.
George Feretzakis
Learn with video lessons and calculators
Access video lessons and use multiple calculators and solvers for IB . Review topics for Higher Level, Standard Level, Applications and Interpretation, and Analysis and Approaches. Track progress with practice questions and exam-style problems.
Piet Jonas
Calculate proportions between two values.
The app calculates the proportion between two values expressed in percent. It allows users to find the percent increase or decrease between two values.
Gilbert Montane Pinto
Calculate, convert, and solve equations
Perform basic and scientific calculations with arithmetic and trigonometric functions. Switch between portrait and landscape modes. Store frequently used values for quick access.
Dri-Eaz Products, Inc.
Calculate GPP from temperature and humidity
Calculate drying environment variables by entering temperature and relative humidity to determine grains per pound. Access advanced features for vapor pressure and dew point calculations. Switch between Fahrenheit and Celsius units.
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