身のまわりの水溶液のphを調べる【万能ph試験紙とphメーター】
Synopsis
酸性やアルカリ性の強さの度合いは、pH（ピーエイチ）の値で表現されます。0から14まであり、0に近いと酸性、14に近いと ...
![[Soil Acidity Meter] Before you regret buying a pH meter, watch this video](https://i.ytimg.com/vi/Yqhn9NzrJ_g/hq720.jpg?sqp=-oaymwEcCNAFEJQDSFXyq4qpAw4IARUAAIhCGAFwAcABBg==&rs=AOn4CLAFBmUiYQbDWoPfXDrcRtk0mZGezA)
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