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The pH Scale definitions

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  • pH Scale
    A scale from 0 to 14 measuring acidity or basicity of solutions at 25°C and 1 molarity.
  • Acidity
    A property of solutions with pH below 7, indicating higher H+ concentration.
  • Basicity
    A property of solutions with pH above 7, indicating higher OH- concentration.
  • Neutral
    A state where pH is 7, with equal concentrations of H+ and OH- ions.
  • Hydrogen Ion
    A positively charged ion, H+, whose concentration determines acidity.
  • Hydroxide Ion
    A negatively charged ion, OH-, whose concentration determines basicity.
  • Molarity
    A measure of solute concentration, typically in moles per liter.
  • Inverse Logarithm
    A mathematical operation used to find ion concentration from pH or pOH.
  • Room Temperature
    Standard condition of 25°C used in pH scale measurements.
  • Vinegar
    An example of an acidic solution with a pH around 3.
  • Ammonia Cleaner
    An example of a basic solution with a pH around 12.
  • pOH
    A measure of hydroxide ion concentration, calculated as -log[OH-].
  • Hydronium Ion
    A form of H+ in water, contributing to acidity.
  • Logarithm
    A mathematical function used in calculating pH and pOH.
  • Equation
    pH + pOH = 14, relating acidity and basicity under standard conditions.