Aqueous solutions and molarity
Chemistry · Unit 2 — Molecular interactions and reactions · Aqueous solutions and acidity
Learning objectives (21)
LO-1Analyse data, including precipitation and acid-carbonate reactions, to determine the presence of specific ions in solutions. Chem istry 2025 v1.3 SolubilityLO-2Analyse data, including solubility curves, to determine the solubility of ionic compounds and the concentration of ions in aqueous solutions. pHLO-3Apply ionic and chemical formulas to construct balanced ionic and chemical equations (including states) for precipitation reactions.LO-4Apply solubility rules to predict if a precipitation will be formed.LO-5Apply the Arrhenius model to explain the behaviour of strong and weak acids and bases in aqueous solutions. Reactions of acidsLO-6Apply the mole concept to calculate moles of solute, concentratio n and volume of a solution. (Formula: Molarity/Concentration (c) = moles of solute ( n) volume of solution (V)) Identifying ions in solutionLO-7Apply the pH scale to compare the levels of acidity or alkalinity of aqueous solutions.LO-8Compare the solubility of ionic and molecular substance in water, and the intermolecular forces between species in the substances and water molecules.LO-9Determine balanced chemical and ionic equation (including states) for the reactions of acids with bases, metals and carbonates.LO-10Discriminate between the terms solute, solvent, solution.LO-11Discriminate between the terms strength and concentration, e.g. acidic/basic solutions.LO-12Discriminate between unsaturated, saturated and supersaturated solutions.LO-13Evaluate the measurable properties of water that are used to determine the water quality of a local water way.LO-14Explain that the unique properties of water are related to molecular shape and hydrogen bonding between molecules.LO-15factors that affect solubility in aqueous solutionsLO-16Identify that changes in solvent temperature can affect the solubility of solid and gaseous solutes (solids and gases).LO-17Identify that the pH scale is a logarithmic scale.LO-18precipitation reactions to identify cations and anionsLO-19reactions of acids with bases, metals and carbonates. Chem istry 2025 v1.3LO-20State that pH is dependent on the concentration of hydrogen ions in solution.LO-21State that square brackets ([ ]) are used to denote concentration.
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