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Clearnote
Q&A
Undergraduate
Natural Science
想請問第四題如何解謝謝🙏
Natural Science
Undergraduate
about 3 yearsago
雅雅
想請問第四題如何解謝謝🙏
內進行分析的必要性? 4.鹼性試樣是 21.0-30.0% 碳酸鈉,你現稱取 1.5012 g 鹼性試樣配成 100 ml 溶液,以溴甲酚綠 作指示劑,如果預期滴定 20.0 mL 0.05 M HCl 溶液到達終點,請問你應該量取多少 L 試樣溶 液進行分析?(Na2CO3 分子量 105.98 g/mol) Na2CO3 + 2HCl 2NaCl + H2O + CO2 - 5. (1)請問使用 pl啦計法進行酸鹼滴定找出當量點的原理是什麼?其與指示劑法所得到的 結果差異性為何?請說明之。
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