Aim how to identify acids and bases by using the ph scale
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Aim: How to identify acids and bases by using the pH scale? PowerPoint PPT Presentation


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Aim: How to identify acids and bases by using the pH scale?. An electrolyte is a substance which, when dissolved in water, forms a solution capable of conducting an electric current . The ability of a solution to conduct an electric current depends on the concentration of ions .

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Aim: How to identify acids and bases by using the pH scale?

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Aim how to identify acids and bases by using the ph scale

Aim: How to identify acids and bases by using the pH scale?

An electrolyte is a substance which, when dissolved in water, forms a solution capable of conducting an electric current. The ability of a solution to conduct an electric current depends on the concentration of ions.

Behavior of many acids and bases can be explained by the Arrhenius theory. Arrhenius acids and bases are electrolytes.


Aim how to identify acids and bases by using the ph scale1

Aim: How to identify acids and bases by using the pH scale?

  • Arrhenius acids yield H+(aq), hydrogen ion as the only positive ion in an aqueous solution. The hydrogen ion may also be written as H3O+(aq), hydronium ion.

  • Arrhenius bases yield OH-(aq), hydroxide ion as the only negative ion in an aqueous solution.


Aim how to identify acids and bases by using the ph scale2

Aim: How to identify acids and bases by using the pH scale?

  • The acidity or alkalinity of an aqueous solution can be measured by its pH value. The relative level of acidity or alkalinity of these solutions can be shown by using indicators.

  • On the pH scale, each decrease of one unit of pH represents a tenfold increase in hydronium ion concentration.


Aim how to identify acids and bases by using the ph scale3

Aim: How to identify acids and bases by using the pH scale?

Essential skills

  • Given properties, identify substances as Arrhenius acids or Arrhenius bases

  • Identify solutions as acid, base, or neutral based upon the pH

  • Interpret changes in acid-base indicator color


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