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GMU:DIY Biolab “Driver’s License”/Yang Li (view source)
Revision as of 14:26, 31 January 2018
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3.2. Making pH solutions | 3.2. Making pH solutions | ||
[[File:Screen Shot 2018-01-31 at 15.12.21.png|400px]] | |||
3.3. Process of experiment | |||
'''17.1.2018''' | '''17.1.2018''' | ||
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I did the experiment of reversibility of colour change. | I did the experiment of reversibility of colour change. | ||
And then I use reversibility of colour change to make the colour of coffee more obviously. | And then I use reversibility of colour change to make the colour of coffee more obviously. | ||
pH of expresso coffee is around 6, I add solution (pH=9) into the original solution 1/2/3, the colour changing is more obviously. | pH of expresso coffee is around 6, I add solution (pH=9) into the original solution 1/2/3, the colour changing is more obviously. | ||
[[File:Reversibility of Color Change.jpg|400px]] | |||
[[File:4581516359845_.pic_hd.jpg|400px]] | |||
'''4. Discussion''' | '''4. Discussion''' | ||
[[File:result.jpg|400px]] | |||
'''5. References''' | '''5. References''' | ||