Chemistry
มัธยมปลาย
這題怎麼算～？
,
取50mL檢水以0.010M EDTA標準溶液滴定,當滴定消耗20.50mL時溶液由紅色變藍色
求該檢水的總硬度為多少 ppm CaCO3?(CaCO3分子量 = 100 )
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這題怎麼算～？
ยังไม่มีคำตอบ
เมื่อดูคำถามนี้แล้ว
ก็จะเจอคำถามเหล่านี้ด้วย😉
![請問
(A)為什麼要放在同一個根號裡？
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![請問
(A)為什麼要放在同一個根號裡？
不能拆開來分別算完[OH-]再加起來？ - 2](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1755981/thumb_l_webp_6836EB4F-23DB-4E81-9585-5982146348F9.webp?Expires=1750218228&Signature=l6bw2H8YhvAdf2xQkdRYs5q9KMkDbRBPA8fqCrNOBRPSPX1hEIIqCbFaAoKqjWZDaVQDoZrbHK~uXd4xRuNXR-wE78kh~GyVFqV7sxN19Y3~hGPKEIYI0rA9xYHlhABPOHd5o-AGDYw1Ox2swTcOaEn4dw2A5d1jsOJ8T~GFXXNrRtep-kCOc5RvpcH~ycVq7Nfwy0No1XwfA8TDaQj9pV32V6V8En8NHvx0sfYOXuAFaa1OIVjjXza7IQwHOpj3i-ZFI202cvQYgEe4hW8C4hIK8ShFCICn67NqY0EtIqF7Ea9ywOC42B6lHsMYZKS9m7OOPfuPhH1hWSx0sQTDfg__&Key-Pair-Id=K2W722D70GJS8W&Expires=1750218228&Signature=f0KHPzh0fIVLJMfQ0JdxzU4uPzmfOfZt1I9omW9UdCNHW4iMm3n39VANLS1NyhQbYBGrlEM1D~ysuFD76DsAH3kKQQcE9ooodle8-HVrO3pS7uRtGzxPLOSeHmw3rFXr7PHhOf4EIyZOb8itC2Mom4qWCKBLROTJzpP3cGElv0WJIThM2Dmwl1m8LITcDJqUgaUEVLsS49sxTuyHnzI-dBGDPKfPUF769s93EuvjZ2Rn-WvHUSa5ot916Kr4Xi0Ds7S9EPTyEPcoK9NmX2kY8YBAGSexNWYB3aNmwbKhizwX6nnTRtnDRhIAq1W-zhyZNWMnmI6fOVth8M0UKgVdUg__&Key-Pair-Id=K2W722D70GJS8W)
