develops and evaluates questions and hypotheses for scientific investigation CH11/12-1

designs and evaluates investigations in order to obtain primary and secondary data and information CH11/12-2

conducts investigations to collect valid and reliable primary and secondary data and information CH11/12-3

selects and processes appropriate qualitative and quantitative data and information using a range of appropriate media CH11/12-4

communicates scientific understanding using suitable language and terminology for a specific audience or purpose CH11/12-7

describes and evaluates chemical systems used to design and analyse chemical processes CH12-15

Analysis of Inorganic Substances

IQ1: How are ions present in the environment identified and measured?

Students:

● analyse the need for monitoring the environment

● conduct qualitative investigations – using flame tests, precipitation and complexation reactions as appropriate – to test for the presence in aqueous solution of the following ions:

– cations: barium (Ba2+), calcium (Ca2+), magnesium (Mg2+), lead(II) (Pb2+), silver ion (Ag+), copper(II) (Cu2+), iron(II) (Fe2+), iron(III) (Fe3+)

– anions: chloride (Cl–), bromide (Br–), iodide (I–), hydroxide (OH–), acetate (CH3COO–), carbonate (CO32–), sulfate (SO42–), phosphate (PO43–)

● conduct investigations and/or process data involving:

– gravimetric analysis

– precipitation titrations

● conduct investigations and/or process data to determine the concentration of coloured species and/or metal ions in aqueous solution, including but not limited to, the use of:

– colourimetry

– ultraviolet-visible spectrophotometry

– atomic absorption spectroscopy

Analysis of Organic Substances

IQ2: How is information about the reactivity and structure of organic compounds obtained?

Students:

● conduct qualitative investigations to test for the presence in organic molecules of the following functional groups:

– carbon–carbon double bonds

– hydroxyl groups

– carboxylic acids

● investigate the processes used to analyse the structure of simple organic compounds addressed in the course, including but not limited to:

– proton and carbon-13 NMR

– mass spectrometry

– infrared spectroscopy

Chemical Synthesis and Design

IQ3: What are the implications for society of chemical synthesis and design?

Students:

● evaluate the factors that need to be considered when designing a chemical synthesis process, including but not limited to:

– availability of reagents

– reaction conditions

– yield and purity

– industrial uses (eg pharmaceutical, cosmetics, cleaning products, fuels)

– environmental, social and economic issues