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Measurements
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Exercise - units and conversions
Worked Exercises Write conversion factors for the following units: a) Litres and millilitres b) Ounces and grams.
The mole - exercises
How many acetaminophen molecules are present in 0.25mol of acetaminophen? From the mole concept and the Avogadro’s number, we know that one mole of acetaminophen contains 6.022×1023 acetaminophen...
The mole as a unit of measurement
In everyday language we say one dozen to describe 12 objects, a decade for ten years, a ream for 500 sheets of paper. In chemistry we use moles.