Researchers can use a metric called the particle number concentration (PNC) to calculate the number of particles in a sample, such as the number of marbles in a jar. Researchers at the National ...
Sodium hypochlorite (chlorine bleach) is diluted for use in disinfection. The method of dilution is simple division. However, ...
A fully resourced GCSE Chemistry lesson designed to introduce one of the most challenging calculation topics in the GCSE specification. This lesson builds pupils’ confidence by breaking quantitative ...
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