Chemistry : Quantitative
Overview
Students will be implementing their mathmatical knowledge by using a variety of equations to solve simple chemical problems. Students will learn how to calculate the chemical ‘mole’ and then extend this knowledge to calculate the concentration of a solution in relation to the mass of solute and the volume of solvent. They will determine the empirical formulae from the ratio of atoms and balance both chemical equations and ionic equations.
The main SMSC/Personal Development content of this topic includes: PD20 – National assessments and examinations for indicators of pupil outcomes, PD22 – Use a range of skills in different contexts and PD23 – WIllingness to participate in a variety of contexts.
The main UN Rights of a Child covered are No.13 – Sharing thoughts freely and No.28 – Access to Education.
Example Key Words
Conservation of Mass
A chemical law which states that the total mass of reactants is equal to the total mass of products when a reaction has occurred.
Concentration
A measure of how much solute is dissolved within a particular volume of solvent.
Mole
A chemical quantity equal to Avagradro’s number (6.02×10^23).
Relative Formula Mass
The average mass of one atom of an element, compared to the isotope carbon-12.
Titration
A practical method used for very accurate neutralisation reactions to calculate unknown concentrations.
Atom Economy
A measure of how many reactant atoms going into forming the useful product during a chemical reaction.