WX Dhafi Quiz
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Ini adalah Daftar Pilihan Jawaban yang Tersedia :
- A. Natrium Klorida
- B. Natrium Sulfat
- C. Kalium Asetat
- D. Ammonium Klorida
- E. Natrium Sianida
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5.Garam berikut yang dalam air bersifat basa adalah ...a.Kalium asetatb.Amonium kloridac.Natrium kloridad.Amonium asetate.Natrium sulfat
Jawab:Kalium Asetat (CH₃COOK), berasal dari basa kuat dan asam lemah.6. Perhatikan beberapa larutan garam berikut1.Na2co32.NaCl3.KNO₂4.KNO₃urutan di atas yang dapat membirukan kertas lakmus merah adalah...
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Jawab:Garam basa, 1 dan 37. Reaksi yang menunjukkan bahwa larutan ZnSO4dalam air brsifat basa adalah...a.SO2-+ H+®H2SO4Zn2++ OH-®Zn(OH)-SO2-+ 2H2O®H2SO₄ + 2OH-b.Zn2++ HSO4-®ZnSO₄ + H+c.Zn2++ 2H2O®Zn(OH)2+ 2H+Jawab:Bereaksinya komponen lemah dari garam dengan air.Zn2++2H2O®Zn(OH)2+ 2H+8. Larutan NaCN 0,1 M mempunyai pH 11, berarti larutan tersebut didalam air terhidrolisis...
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Jawab:pH=11 à [H⁺] = 10⁻¹¹, [OH¯] = 10⁻³ M.[OH¯] = √ (Kh x G)10⁻⁶ = Kh x 0,1 à Kh = 10⁻⁵ à Kh=α² Gàα² = 10⁻⁴ à α = 10⁻² =1%9. Larutan NH₄Cl,Kb NH₃=10⁻⁵mempunyai pH=5 ,maka didalam 100 mLlarutan tersebut terlarutNH₄Cl sebanyak....(Mr NH₄Cl = 53,5)
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Jawab:pH=5 à [H⁺] = 10⁻⁵ à[H⁺] = √ (Kw/Kb) x G10⁻¹⁰=(10⁻¹⁴/10⁻⁵) x GG = 10⁻¹ M10⁻¹ =( m/Mr)/0,1 à m = 53,5 gram/10 Garam yang dalam air bersifat basa adalah...a.Tembaga (II) Sulfatb.Kalium karbonatc.Kalium nitratd.Natriumkloridae.Natrium asetat
Jawab:Garam basa, jadi Natium asetat
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