Page 7 - التحليل الكيميائي ahmed

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‫‪ - 6‬اﻧﯾون اﻟﻧﯾﺗرﯾت ‪NO2 -‬‬

‫• ﺟﻤﯿﻌﮭﺎ ﺗﺬوب ﻓﻲ اﻟﻤﺎء ﻣﺎ ﻋﺪا ﻧﯿﺘﺮﯾﺖ اﻟﻔﻀﺔ ﻻ ﺗﺬوب ﻓﻲ اﻟﻤﺎء‬
‫• ھﻲ اﻣﻼح ﺣﻤﺾ اﻟﻨﯿﺘﺮوز ‪HNO2‬‬

‫اﻟﺘﺠﺮﺑﺔ اﻟﺘﺎﻛﯿﺪﯾﺔ‬ ‫اﻟﺘﺠﺮﺑﺔ اﻻﺳﺎﺳﯿﺔ‬

‫ﻣﺤﻠﻮل اﻟﻤﻠﺢ ‪+‬ﻣﺤﻠﻮل ﺑﺮﻣﻨﺠﻨﺎت ﺑﻮﺗﺎﺳﯿﻮم ﻣﺤﻤﻀﺔ‬ ‫اﻟﻤﻠﺢ اﻟﺼﻠﺐ ‪+‬ﺣﻤﺾ ‪ HCL‬ﻣﺨﻔﻒ ← ﯾﺘﺼﺎﻋﺪ ﻏﺎز‬
‫ﺑﺤﻤﺾ ﻛﺒﺮﯾﺘﯿﻚ ﻣﺮﻛﺰ ← ﯾﺰول ﻟﻮن اﻟﺒﻨﻔﺴﺠﻲ‬ ‫اﻛﺴﯿﺪ ﻧﯿﺘﺮﯾﻚ ‪ NO‬ﻋﺪﯾﻢ اﻟﻠﻮن ﯾﺘﺤﻮل ﻋﻨﺪ ﻓﻮھﺔ‬

‫)‪5 Na NO (aq )+2 K M n O (aq)+3 H S O (l‬‬ ‫اﻻﻧﺒﻮﺑﺔ اﻟﻲ ‪ NO2‬ﺑﻨﻲ ﻣﺤﻤﺮ ﻧﺘﯿﺠﺔ ﻻﻛﺴﺪﺗﮫ ﺑﺎﻛﺴﯿﺠﯿﻦ‬
‫‪2 4 24‬‬ ‫اﻟﮭﻮاء‬

‫)‪5 Na NO (aq )+K S O (aq)+2 M n S O (aq)+3 H O (l‬‬
‫‪3 24‬‬ ‫‪42‬‬ ‫)‪Na NO (s)+HCl(aq‬‬ ‫)‪NaCl(aq)+HNO (aq‬‬
‫‪2‬‬ ‫‪2‬‬

‫)‪3HNO (aq‬‬ ‫)‪HNO (aq)+H O(l)+NO (g‬‬
‫‪2‬‬ ‫‪32‬‬

‫)‪2NO(g) +O (g‬‬ ‫)‪2NO (g‬‬
‫‪2‬‬ ‫‪2‬‬

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