All Acids and bases articles – Page 8

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    Acids and Alkalis

    Understanding the background to acids and alkalis, and particularly focussing on the identification and quantification of pH, gives students a solid foundation for the investigation of chemical properties. This programme is designed to develop students understanding of acids and alkalis as well as developing thinking and research skills.

  • Dehydration of permanganic acid
    Exhibition chemistry

    Balls of fire!

    2014-01-07T00:00:00Z

    Another spectacular demonstration of the dehydrating properties of acid

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    The duck pond problem

    Learn more about how humans can affect the environment, and how chemistry can be used to help it in this practical. Includes kit list and safety instructions. 

  • Coloured liquids in containers image
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    Technician in trouble! What solutions are which?

    Investigate different chemical solutions with this experiment that explore reactions of acids and alkalis, as well as neutralisation. Includes kit list and safety instructions. 

  • Food dye image
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    Making your own indicator

    Explore acids, alkalis, and dyes with this classroom practical. Includes kit list and safety instructions. 

  • oxo cube image
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    Lift Oxo cubes to dizzy heights

    Explore how creating carbon dioxide from reactions can be harnessed to lift objects in this classroom experiment. 

  • Natural dyes image
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    Indicator puzzle

    Discover the pH of different solutions by using plant based natural dyes in this practical. Includes kit list and safety instructions.

  • felt pens image
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    Funny felt pens

    Find out how colour changing pens work in this practical into acids and alkalis in inks. Includes kit list and safety instructions.

  • coloured test tube image
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    Colour creation

    Blue and red make purple, but what makes blue? Discover how acids and alkalis indicate with different colours in this practical. Includes kit list and safety instructions.

  • Homemade boat image
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    Building a chemically powered boat

    Put junk material to good use, and create a gas powered boat, to explore CO2 production. Includes kit list and safety instructions. 

  • Clothing displayed at the Victoria and Albert Museum, London
    Feature

    Textile conservation

    2013-05-01T00:00:00Z

    Anita Quye explains how to look after fragile fabrics for future generations

  • Scanning electron micrograph (SEM) of a mesh of paper fibres
    Feature

    Paper conservation

    2013-03-01T00:00:00Z

    History is written on paper and chemistry is at the heart of paper conservation

  • Red food colouring diffusing in a glass of water against a light background
    The Mole

    Using chemistry to turn ‘water’ into ‘wine’

    2013-01-01T09:20:00Z

    Learn how iron(III) oxide and potassium thiocyanate can be used to turn ‘water’ into ‘wine’, and try a similar experiment yourself using household ingredients.

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    On This Day - Feb 22 : Johannes Brønsted was born

    Brønsted developed an identical definition of acids and bases simultaneously but independently from English chemist Thomas Lowry in 1923. Acids are recognised by an excess of H+ ions, and bases have an excess of OH- ions.

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    On This Day - Nov 17 : Nicolas Lemery was born

    His research focus was in the area of acid-base chemistry, but he also prepared a comprehensive dictionary of pharmaceuticals and wrote a chemistry textbook Cours de chymie (1675) that had 31 editions by 1756!

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    On This Day - Jan 09 : Søren Sørensen was born

    He developed the pH scale (which ranges from 0-14) at the Carlsberg Laboratory in Denmark. This was the first time that the negative logarithm of proton (H+) concentration was used as a measure of acidity.

  • Feature microscale pg022 fig5 250 tcm18 216607[1]
    Feature

    Microscale chemistry revisited

    2012-05-01T00:00:00Z

    Microscale techniques are unlikely to replace our traditional approach to chemistry education, but they do provide an extra dimension to our teaching strategies

  • A screenshot showing a completed gridlock puzzle, with a grid containing the names and formulas of four alkanes
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    28 chemistry puzzles for 14-16 years

    Use these sudoku-inspired puzzles with printable worksheets and answers to help 14–16 year olds consolidate their understanding of key chemical concepts.

  • A screenshot showing a completed gridlock puzzle, with a grid containing information about hybrid orbitals in molecular geometry
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    45 chemistry puzzles for 16-18 years

    Try these chemistry puzzles based on sudoku to help 16–18 year old students consolidate their knowledge about key topics, with printable worksheets and answers.

  • A screenshot showing a completed gridlock puzzle, with a grid containing the names and symbols for four elements
    Resource

    28 chemistry puzzles for 11-14 years

    Try these sudoku-style chemistry puzzles for 11–14 year olds to reinforce your students’ understanding of key ideas, featuring printable worksheets and answers.