количина

In a sentence

• Купио сам велику количину воћа на пијаци.

  I bought a large amount of fruit at the market.

  Here 'количина' is used to denote the measured quantity of items, specifically fruit.

• Због границе која регулише количину увоза, морали смо смањити наруџбину.

  Due to the limit regulating the amount of imports, we had to reduce the order.

  In this case, 'количина' is used in the context of regulated or specified quantities of goods.

• У хемији треба пажљиво одредити количину коришћених реактаната.

  In chemistry, it is necessary to carefully determine the amount of reactants used.

  Here, 'количина' refers to a specific measurable quantity important in scientific contexts.