Definition of Acidic Solution

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Acidic solutions are any solution that has a higher concentration of hydrogen ions than water; solutions that have a lower concentration of hydrogen ions than water are called basic or alkaline solutions.

Classification

  • Acidity is measured on a scale known as pH which sets water at 7; all acidic solutions have pH less than 7 and bases have pHs greater than 7.

Acidity

  • The closer an acid is to 0 on the pH scale the more acidic it is; the pH scale is exponential so a decrease of 1 pH amounts to 10 times greater acidity.

Types

  • Many common solutions are acidic including orange juice, lemon juice, coffee and even saliva. Water contaminated with acidic solutions will itself become slightly acidic.

Corrosion

  • Acidic solutions have the ability to corrode or "eat" various materials over time; solutions with higher acidity will corrode materials more quickly.

Bodily Function

  • The human body produces gastric acid and hydrochloric acid in the stomach which helps it break down food.

References

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