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EKSPERIMEN MENENTUKAN pH TANAH KAEDAH LARUTAN PENUNJUK UNIVERSAL (KAEDAH KUHN)

EKSPERIMEN MENENTUKAN pH TANAH KAEDAH LARUTAN PENUNJUK UNIVERSAL (KAEDAH KUHN). Bahan : Sampel tanah , barium sulfat , larutan penunjuk universal, air suling Alatan : Tabung uji , rak tabung uji , Carta pH, penutup getah , penitis , spatula. LANGKAH-LANGKAH EKSPERIMEN.

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EKSPERIMEN MENENTUKAN pH TANAH KAEDAH LARUTAN PENUNJUK UNIVERSAL (KAEDAH KUHN)

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  1. EKSPERIMEN MENENTUKAN pH TANAH KAEDAH LARUTAN PENUNJUK UNIVERSAL (KAEDAH KUHN)

  2. Bahan: Sampeltanah, barium sulfat, larutanpenunjuk universal, air sulingAlatan: Tabunguji, raktabunguji, Carta pH, penutupgetah, penitis, spatula

  3. LANGKAH-LANGKAHEKSPERIMEN

  4. Masukkan Barium Sulfatkedalamtabungujisebanyak 2.5sm (tinggitabunguji) • Masukkansampeltanahsebanyak 2.5sm (tinggitabunguji) • Masukkan air sulingsehingga ¾ penuhtabunguji • Tutuptabungujidenganpenyumbatgetah • Goncangtabunguji • Letakkantabungujipadaraktabungujisekurangnya 20 minit • Perhatikanwarna yang terhasil. • Bandingkanwarna yang terhasildengancarta pH • Tentukan pH tanahtersebut

  5. 1. Masukkan Barium Sulfatkedalamtabungujisebanyak 2.5sm (tinggitabunguji)

  6. 2. Masukkansampeltanahsebanyak 2.5sm (tinggitabunguji)

  7. 3. Masukkan air sulingsehingga ¾ penuhtabunguji.

  8. 4. Masukkan 4-5 titisanLarutanPenunjuk Universal

  9. 5. Tutuptabungujidenganpenyumbatgetah

  10. 6. Goncangtabunguji

  11. 7. Letakkantabungujipadaraktabungujisekurangnya 20 minit

  12. 8. Perhatikanwarna yang terhasil.

  13. 9. Bandingkanwarna yang terhasildengancarta pH 10. Tentukan pH tanahtersebut

  14. SEKIAN TERIMA KASIH

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