Question

8£®È¡ÉÙÁ¿Fe₂O₃·ÛÄ©£¨ºì×ØÉ«£©¼ÓÈëÊÊÁ¿ÑÎËᣬËùµÃÈÜÒº½øÐÐÒÔÏÂʵÑ飺
£¨1£©È¡ÉÙÁ¿ÈÜÒºÖÃÓÚÊÔ¹ÜÖУ¬µÎÈëNaOHÈÜÒº£¬¿É¹Û²ìµ½ÓкìºÖÉ«³ÁµíÉú³É£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪFeCl₃+3NaOH¨T3NaCl+Fe£¨OH£©₃¡ý£®
£¨2£©ÏòÉÕ±­ÖмÓ20ml·ÐÌÚµÄÕôÁóË®£¬µÎÈ뼸µÎFeCl₃ÈÜÒº£¬¼ÌÐøÖó·ÐÖÁÈÜÒº³ÊºìºÖÉ«£¬¼´¿ÉÖƵÃFe£¨OH£©₃½ºÌ壮д³öÖƱ¸Fe£¨OH£©₃½ºÌåµÄ»¯Ñ§·´Ó¦·½³ÌʽFeCl₃+3H₂O$\frac{\underline{\;\;¡÷\;\;}}{\;}$Fe£¨OH£©₃£¨½ºÌ壩+3HCl£®
£¨3£©ÔÚ×°ÓÐFe£¨OH£©₃½ºÌåµÄUÐ͹ܵÄÁ½Í·²åÈëÁ½¸ö¶èÐԵ缫£¬Í¨Ö±Á÷µçÒ»¶Îʱ¼ä£¬Òõ¼«¸½½üµÄÑÕÉ«Öð½¥±äÉÕâÖÖÏÖÏó½ÐµçÓ¾£» ÏòFe£¨OH£©₃½ºÌåÖмÓÈë¹èËὺÌ壬½ºÌå±äµÃ»ë×Ç£¬ÕâÊÇ·¢ÉúÁ˾۳Á£®
£¨4£©È¡Ò»¶¨Á¿µÄFe£¨OH£©₃½ºÌåÖÃÓÚÊÔ¹ÜÖУ¬ÏòÊÔ¹ÜÖеμÓÊÊÁ¿µÄÏ¡ÁòËᣬ¹Û²ìµ½µÄÏÖÏóÊÇÏȲúÉúºìºÖÉ«³Áµí£¬È»ºó³ÁµíÈܽ⣬ÈÜÒº±äΪ×Ø»ÆÉ«£®

Answer 1

·ÖÎö £¨1£©ÇâÑõ»¯ÄÆÓëÂÈ»¯Ìú·´Ó¦Éú³ÉÇâÑõ»¯Ìú³ÁµíºÍÂÈ»¯ÄÆ£»
£¨2£©½«±¥ºÍÂÈ»¯ÌúÈÜÒºµÎÈë·ÐË®ÖмÓÈÈ¿ÉÒÔÖƱ¸ÇâÑõ»¯Ìú½ºÌ壻
£¨3£©Fe£¨OH£©₃½ºÁ£Ôڵ糡µÄ×÷ÓÃÏ£¬×ö¶¨ÏòÔ˶¯£¬ÕâÖÖÏÖÏó³ÆΪµçÓ¾£»½ºÌåÓö½ºÁ£´øÏà·´µçºÉµÄ½ºÌå·¢Éú¾Û³Á£»½ºÌåÓö½ºÁ£´øÏà·´µçºÉµÄ½ºÌå·¢Éú¾Û³Á£»
£¨4£©ÇâÑõ»¯Ìú½ºÌåÖмÓÈëÏ¡ÁòËᣬ¿ªÊ¼·¢Éú¾Û³ÁÏÖÏó£¬È»ºóÇâÑõ»¯Ìú³ÁµíÓëÏ¡ÁòËá·´Ó¦Éú³ÉÁòËáÌúºÍË®£®

½â´ð ½â£º£¨1£©È¡ÉÙÁ¿ÈÜÒºÖÃÓÚÊÔ¹ÜÖУ¬µÎÈëNaOHÈÜÒº£¬ÇâÑõ»¯ÄƺÍÌúÀë×Ó·´Ó¦Éú³ÉºìºÖÉ«ÇâÑõ»¯Ìú³Áµí£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ£ºFeCl₃+3NaOH¨T3NaCl+Fe£¨OH£©₃¡ý£¬
¹Ê´ð°¸Îª£ºFeCl₃+3NaOH¨T3NaCl+Fe£¨OH£©₃¡ý£»
£¨2£©Ïò·ÐË®ÖеÎÈ뼸µÎFeCl₃±¥ºÍÈÜÒº£¬¼ÌÐøÖó·ÐÖÁÈÜÒº±ä³ÉºìºÖÉ«£¬¼´¿ÉÖƵÃÇâÑõ»¯Ìú½ºÌ壬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ£ºFeCl₃+3H₂O$\frac{\underline{\;\;¡÷\;\;}}{\;}$Fe£¨OH£©₃£¨½ºÌ壩+3HCl£¬
¹Ê´ð°¸Îª£ºÈÜÒº³ÊºìºÖÉ«£»
¹Ê´ð°¸Îª£ººìºÖ£»FeCl₃+3H₂O$\frac{\underline{\;\;¡÷\;\;}}{\;}$Fe£¨OH£©₃£¨½ºÌ壩+3HCl£»
£¨3£©ÒòFe£¨OH£©₃½ºÁ£´øÓÐÕýµçºÉ£¬ËùÒÔÔڵ糡µÄ×÷ÓÃÏ£¬ÏòÒõ¼«ÇøÒƶ¯£¬¶øʹ¸ÃÇøÑÕÉ«¼ÓÉÕâÖÖÏÖÏó³ÆΪµçÓ¾£»
 ÏòFe£¨OH£©₃½ºÌåÖмÓÈë¹èËὺÌ壬Á½ÖÖ½ºÁ£´øÏà·´µçºÉ£¬»ìºÏºó½ºÌå»á·¢Éú¾Û³Á£¬
¹Ê´ð°¸Îª£ºµçÓ¾£»¾Û³Á£»
£¨4£©È¡Ò»¶¨Á¿µÄFe£¨OH£©₃½ºÌåÖÃÓÚÊÔ¹ÜÖУ¬ÏòÊÔ¹ÜÖеμÓÊÊÁ¿µÄÏ¡ÁòËᣬ¿ªÊ¼Ê±·¢Éú¾Û³ÁÏÖÏóÉú³ÉºìºÖÉ«µÄÇâÑõ»¯Ìú³Áµí£¬È»ºóÉú³ÉµÄ³ÁµíÓëÏ¡ÁòËá·´Ó¦Éú³ÉÁòËáÌúºÍË®£¬ÈÜÒº±äΪ×Ø»ÆÉ«£¬
¹Ê´ð°¸Îª£ºÏȲúÉúºìºÖÉ«³Áµí£¬È»ºó³ÁµíÈܽ⣬ÈÜÒº±äΪ×Ø»ÆÉ«£®

µãÆÀ ±¾Ì⿼²é½ÏΪ×ۺϣ¬Éæ¼°Ìú¼°Æ仯ºÏÎïÐÔÖÊ¡¢½ºÌåÖƱ¸ÓëÐÔÖʵÈ֪ʶ£¬Ã÷È·½ºÌåµÄÖƱ¸·½·¨¼°ÐÔÖÊΪ½â´ð¹Ø¼ü£¬×¢ÒâÕÆÎÕ³£¼ûÔªËؼ°Æ仯ºÏÎïÐÔÖÊ£¬ÊÔÌâÅàÑøÁËѧÉúµÄÁé»îÓ¦ÓÃÄÜÁ¦£®