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5Â¥: Originally posted by mlanqiang at 2012-11-02 16:00:59
¼ÓË®°ÑÎïÖÊÅä³É 50g/LµÄÈÜÒº
prepare a solution with concentration 50g/L by mixing water and  solute.

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9Â¥2012-11-04 08:16:09
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2Â¥2012-11-02 11:13:01
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littleroad: ½ð±Ò+2, ¶àлÈÈÐÄÓ¦Öú£¡ 2012-11-02 11:56:16
Adding water solvent to dissolve the solutes completely, with a final concentration as 50g/l
3Â¥2012-11-02 11:22:29
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etin: ½ð±Ò+1, ¸ÐлÀ¶»ÛMMÓ¦Öú 2012-11-02 19:44:43
add distilled water to dissolve the substance with a final concentration 50g/L
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4Â¥2012-11-02 15:22:06
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