GMU:DIY Biolab “Driver’s License”/Yang Li: Difference between revisions

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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]]




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