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FeSO4 + KMnO4 + H2SO4 Fe2(SO4)3 + MnSO4 + KHSO4 + H2O
สมการรีดอกซ์
สมการตัวอย่าง :
การดุลสมการรีดอกซ์
จากสมการตัวอย่าง :
FeSO4 + KMnO4 + H2SO4 Fe2(SO4)3 + MnSO4 + KHSO4 + H2O
+2 +3+7 +2
เกิด OX O.N. เพิ่ม >> 1 × 2 = 2
เกิด Red O.N. ลด >> 5
2 : 5
การดุลสมการรีดอกซ์
10FeSO4 + 2KMnO4 + 9H2SO4 5Fe2(SO4)3 + 2MnSO4 + 2KHSO4 + 8H2O
5×2
1 234 5 6
สมการที่ดุลแล้ว
10FeSO4 + 2KMnO4 + 9H2SO4 5Fe2(SO4)3 + 2MnSO4 + 2KHSO4 + 8H2O
Electrochemistry

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