concentration
Definition
Concentration is the amount of a substance in a given volume.
It is a measure of the number of molecules of a substance in a given volume of solution.
The concentration of a substance can be expressed in a number of different units, including moles per litre, grams per litre, and parts per million.
How can the word be used?
The solution was concentrated.
Different forms of the word
Noun:
Concentration: The act of concentrating or the state of being concentrated.
Concentrate: A substance that has been concentrated.
Adjective:
Concentrated: Having a high concentration of something.
Concentrative: Tending to concentrate.
Verb:
To concentrate: To focus one's attention or effort on something.
To concentrate something: To make something more concentrated.
Etymology
The word "concentration" comes from the Latin word "concentratio", which means "to bring together" or "to gather". The word "concentratio" is made up of the prefix "con-", which means "together", and the verb "centrare", which means "to center".
Question
What happens to the taste of orange squash when the concentration is diluted?
AQA Science Exam Question and Answer
Question:
What is concentration in the context of a solution, and how is it calculated?
Answer:
Concentration refers to the amount of solute dissolved in a given amount of solvent within a solution. It is commonly expressed as moles per litre (mol/L) or molarity. The formula to calculate concentration is:
Concentration (mol/L) = Number of moles of solute / Volume of solvent (in litres).
For example, if we dissolve 0.1 moles of salt in 1 litre of water, the concentration of the salt solution would be 0.1 mol/L.