October 2018 1 1K Report
Indikator Trayek pH Perubahan Warna
MO 3,1 - 4,4 merah - kuning
MM 4,4 - 6,2 merah - kuning
BTB 6,0 - 7,6 kuning - biru
PP 8,3 - 10,0 tak berwarna - merah

perhatikan tabel diatas.
suatu sampel air sungai ditetesi indikator MO dan BTB berwarna kuning. Ketika ditetesi MM berwarna jingga dan tak berwarna jika ditetesi PP. berapa pH dari sampel air sungai tersebut.
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