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9Â¥: Originally posted by Ëõ++Ó° at 2013-11-13 22:16:00
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2 NaCl + (NH4)2SO4 = Na2SO4  + 2 NH4Cl

20g NH4ClµÄÎïÖʵÄÁ¿Îª 20g/(53.49g/mol )¡Ö0.3739mol£¬
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2NH4Cl¶ÔÓ¦Ò»¸ö(NH4)2SO4 £¬ÐèÒª(NH4)2SO4 µÄÁ¿Îª0.3739/2 mol£¬ÖÊÁ¿Îª0.3739/2 mol ¡Á 132.13g/mol¡Ö24.70g;
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12Â¥2013-11-14 14:37:47
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13Â¥2013-11-14 14:40:50
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