首页 > 中学英语试题 > 题目详情
英语翻译(by gravimetry)weight accurately about 0.5g,disslove in
题目内容：
英语翻译
(by gravimetry)weight accurately about 0.5g,disslove in 100ml of water,and add 1ml of acetic.add,with constant stirring ,25ml of 5% potassium hydrogen phthalate solution,and allow to stand for 2h.Filter though a tared,fine-porosity filtering crucible,wash with three 5-ml portions of saturated potassium tetraphenylborate sulution,and dry at 105C for 1h.The weight of the potassium tetraphenylborate multiplied by 0.9551 corresponds to the weight of the tetraphenylborate.
英语翻译
(by gravimetry)weight accurately about 0.5g,disslove in 100ml of water,and add 1ml of acetic.add,with constant stirring ,25ml of 5% potassium hydrogen phthalate solution,and allow to stand for 2h.Filter though a tared,fine-porosity filtering crucible,wash with three 5-ml portions of saturated potassium tetraphenylborate sulution,and dry at 105C for 1h.The weight of the potassium tetraphenylborate multiplied by 0.9551 corresponds to the weight of the tetraphenylborate.
(by gravimetry)weight accurately about 0.5g,disslove in 100ml of water,and add 1ml of acetic.add,with constant stirring ,25ml of 5% potassium hydrogen phthalate solution,and allow to stand for 2h.Filter though a tared,fine-porosity filtering crucible,wash with three 5-ml portions of saturated potassium tetraphenylborate sulution,and dry at 105C for 1h.The weight of the potassium tetraphenylborate multiplied by 0.9551 corresponds to the weight of the tetraphenylborate.
本题链接：