Neat! Let’s go explore Hydrocarbon Homologous Series Type #1: Alkanes
If you recall from last week’s we said that hydrocarbons are compounds that solely have carbon and hydrogen atoms and no other atoms. We will now proceed to explore various homologous series of hydrocarbons. The reason for this we will explore in Learning Objective #2 and #4 later in this week’s notes.
molecular mass, melting and boiling point, density, viscosity, etc). methane, ethane, propane are homologs/homologues as they are all part of the same homologous series called Alkanes.Įach previous and subsequent homolog differs in the number of only one CH2 unit.Įach homolog has the same chemical properties as they have the same functional group.ĭue to their different molecular mass, they have different physical properties (e.g. The term ‘homologs’ or ‘ homologues‘ refers to compounds that are in the same homologous series e.g. Learning Objective #1 - Construct models, identify the functional group, and write structural & molecular formulae for homologous series of organic chemical compounds, up to C8 for the following categories of hydrocarbons:Ī homologous series is just a category of molecules with the same functional (sometimes substituent e.g. Learning Objective #6 – Examine the environmental, economic and sociocultural implications of obtaining and using hydrocarbons from the Earth NEW HSC Chemistry Syllabus Video – Hydrocarbons Week 8 Homework Questions (Essential for Band 5!) Week 8 Curveball Questions (Moving from Band 5 to Band 6!) Week 8 Extension Questions Solutions to Week 8 Questions Learning Objective #5 – Describe the procedures required to safely handle and dispose of organic substances. Learning Objective #4 – Explain the properties within and between the homologous series of alkanes with reference to the intermolecular and intramolecular bonding present. Learning Objective #3 – Analyse the shape of molecules formed between carbon atoms when a single, double or triple bond is formed between them. – alkynes Learning Objective #2 – Conduct an investigation to compare the properties of organic chemical compounds within a homologous series, and explain these differences in terms of bonding. Overview of Week 9 Inquiry Questio n – How can hydrocarbons be classified based on their structure and reactivity? Learning Objective #1 – Construct models, identify the functional group, and write structural and molecular formulae for homologous series of organic chemical compounds, up to C8: These findings validate the HANA as a functional group common to UmAS and diverted UmAS, opening the door to its targeted use and creative manipulation.HSC Chemistry Syllabus Notes Module 7 / Inquiry Question 2 We report here the direct observation of a HANA, its conversion thermally to an amide functionality, and quantitative analysis of this process using computational techniques. Studies probing HANA transience have failed to capture this (presumably) highly reactive intermediate. The “umpolung” moniker reflects its paradigm-breaking C–N bond formation on the basis of evidence that the nucleophilic nitronate carbon and electrophilic nitrogen engage to form a tetrahedral intermediate (TI) that is an unprecedented functional group, a 1,1,1-halo-amino-nitro alkane (HANA). Umpolung amide synthesis (UmAS) exploits the unique properties of an α-halo nitroalkane in its reaction with an amine to produce an amide. Conventional amide synthesis is a mainstay in discipline-spanning applications, and it is a reaction type that historically developed as a singular paradigm when considering the carbon-nitrogen bond-forming step.
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