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GMU:DIY Biolab “Driver’s License”/Yang Li (view source)
Revision as of 16:20, 10 January 2018
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8. pH=13 100ml distilled water + 1ml NaOH | 8. pH=13 100ml distilled water + 1ml NaOH | ||
[[File:WechatIMG420.jpeg|400px]][[File:WechatIMG430.jpeg|400px]] | [[File:WechatIMG420.jpeg|400px]] | ||
after 5 minutes change to yellow | |||
[[File:WechatIMG430.jpeg|400px]] | |||