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Molarity Meaning: Definition, Examples, and Translations

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molarity

[mษ™หˆlรฆr.ษ™.tฬฌi ]

Definition

Context #1 | Noun

chemistry

Molarity is a unit of concentration that describes the number of moles of a solute in one liter of solution. It is commonly used in chemistry to express the concentration of a solution.

Synonyms

concentration, density, strength.

Examples of usage

  • The molarity of this solution is 0.5 M.
  • To calculate molarity, divide the moles of solute by the volume of solution in liters.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Science

  • Molarity is expressed in moles per liter (mol/L), a standard unit that helps scientists communicate about solutions.
  • A one molar (1 M) solution contains one mole of a substance in one liter of solution, making it a key concept in chemical reactions.
  • Because temperature can affect volume, precise measurements for molarity often take into account temperature corrections.

Education

  • Students in chemistry classes often use molarity to calculate how much acid or base to use in experiments.
  • Laboratory exercises frequently involve diluting solutions to achieve specific molarities, helping students learn practical skills.

Applications

  • Molarity is crucial in pharmaceuticals, where precise dosages of active ingredients must be calculated for effective medicines.
  • In environmental science, understanding the molarity of pollutants can help assess the impact on ecosystems and human health.

Pop Culture

  • Some popular science educators use everyday analogies about cooking or mixing drinks to explain molarity, making it relatable.
  • Molarity occasionally appears in movies and shows that feature science labs, helping to spark interest in chemistry among audiences.

Origin of 'molarity'

Main points about word origin

  • The term comes from the Latin word 'moles', meaning mass, highlighting the connection to how much substance is present.
  • It was first widely used in chemistry in the early 20th century, as scientists needed a way to express concentrations accurately.

The term 'molarity' originated from the Latin word 'moles', meaning mass or amount, and 'solลซtus', meaning dissolved. It was first introduced by the German chemist Friedrich Mohr in the mid-19th century. Molarity is a crucial concept in chemistry, providing a precise way to measure the concentration of solutions.

See also: molars, premolars.

Word Frequency Rank

This word's position of #33,346 indicates it's among the more rare English words. While understanding it broadens your vocabulary, focus on more common words first.