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关注：1
2013-05-23 12:21
求翻译：用蒸馏水反复洗涤沉淀,直至洗涤液中不再能检出NO-3 离子为止,此时洗涤液的pH 值接近7是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
用蒸馏水反复洗涤沉淀,直至洗涤液中不再能检出NO-3 离子为止,此时洗涤液的pH 值接近7
问题补充： |
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2013-05-23 12:21:38
Precipitate repeatedly washed with distilled water until the washing liquid can no longer be detected in NO-3 ions, at which time the pH of washing liquid close to 7
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2013-05-23 12:23:18
[object Object]
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2013-05-23 12:24:58
Washes repeatedly with the distilled water precipitates, until in the cleaning solution no longer can pick out the NO-3 ion up to, this time cleaning solution pH value close 7
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2013-05-23 12:26:38
Repeated washing with distilled water precipitation until until the washing liquid is no longer able to check out the NO-3 ion, washing liquid pH value close to 7
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2013-05-23 12:28:18
Repeated washing with distilled water precipitation until until the washing liquid is no longer able to check out the NO-3 ion, washing liquid pH value close to 7
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