ÌâÄ¿ÄÚÈÝ
ÌúÇ¿»¯½´ÓÍÊÇÔÚ½´ÓÍÌí¼ÓʳƷǿ»¯¼Á--ÒÒ¶þ°·ËÄÒÒËáÌúÄÆÑΣ¬ÒÒ¶þ°·ËÄÒÒËáÌúÄÆÑλ¯Ñ§Ê½Îª£º
C10Hl2FeN2NaO8¡¤3H2O£¬Ê½Á¿£º421£¬EDTAÌúÄÆÑγÊdzÍÁ»ÆÉ«½á¾§·ÛÄ©£¬ÐÔÎȶ¨£¬Ò×ÈÜÓÚË®¼°ÄÑÈÜÓÚÒÒ´¼¡£l£¥µÄË®ÈÜÒºpHԼΪ3.5£¬¿ÉÓÉÒÒ¶þ°·ËÄÒÒËáÒ»ÄÆÑΣ¨NaH3EDTA£©ÓëÂÈ»¯ÌúÖÆÈ¡£¬ÖÆÈ¡ÔÀíÈçÏÂ
C10Hl2FeN2NaO8¡¤3H2O£¬Ê½Á¿£º421£¬EDTAÌúÄÆÑγÊdzÍÁ»ÆÉ«½á¾§·ÛÄ©£¬ÐÔÎȶ¨£¬Ò×ÈÜÓÚË®¼°ÄÑÈÜÓÚÒÒ´¼¡£l£¥µÄË®ÈÜÒºpHԼΪ3.5£¬¿ÉÓÉÒÒ¶þ°·ËÄÒÒËáÒ»ÄÆÑΣ¨NaH3EDTA£©ÓëÂÈ»¯ÌúÖÆÈ¡£¬ÖÆÈ¡ÔÀíÈçÏÂ
ʵÑéÊÒÖƱ¸NaFeEDTA¡¤3H2O²½ÖèÈçÏ£º
¢Ù°Ñ0£®4g£¨0£®0lmol£©NaOHÈÜÓÚl0mLÕôÁóË®£¬È»ºóÔÙ¼ÓÈë3£®8g£¨0£®01mo1£©Na2H2EDTA¡¤2H2O£¬°ÑÈÜҺ΢ÈÈ£¬Ö±ÖÁ¹ÌÌåÍêÈ«Èܽ⡣
¢ÚÓú¬ÓÐÂÈ»¯ÍÔÓÖʵÄÂÈ»¯ÌúÌá´¿²¢ÖƵÃFeCl3¡¤6H2O¡£³ÆÈ¡2£®5g£¨0£®009mol£©FeCl3¡¤6H2OÈÜÓè5mL£¬ÕôÁóË®ÖУ¨²¢¼ÓlµÎÑÎËᣩ¡£
¢Û½«¢Ù¡¢¢ÚÖƵõÄÁ½ÈÜÒº»ìºÏ
¢Ü¼ÓÈÈÈÜÒºÖÁ·ÐÌÚ£¬Õô·¢Å¨ËõÖ±ÖÁ´ó²¿·Ö·Ûĩ״µÄ¹ÌÌåÎö³ö¡£
¢ÝÀäÈ´¡¢¼õѹ¹ýÂË£¬ÏÈÓñùˮϴµÓéËÓÃÒÒ´¼Ï´µÓ¡£
¢Þ½«¹ÌÌåÁ¹¸É£¬³ÆµÃÖƵõĵ»ÆÉ«·ÛÄ©2£®8g
ÊԻشðÏÂÁÐÎÊÌâ
£¨1£©ÔÚ²½Öè¢ÙÖУ¬Ðë¼ÓÈë¹ýÁ¿µÄ¼î£¬ÊÇÒòΪ_________________¡£
£¨2£©½«º¬ÓÐÂÈ»¯ÍÔÓÖʵÄÂÈ»¯ÌúÈÜÒº·ÖÀë¿ÉÓõļòµ¥·½·¨ÊÇ___________________________£»¼ÓÏÔÉ«Àûºó·Ö±ð·¢Éú·´Ó¦µÄÀë×Ó·½³ÌʽΪ_______________________£»_________________________¡£
£¨3£©²½Öè¢ÝÖÐÓñùË®ºÍÒÒ´¼Ï´µÓµÄÄ¿µÄÊÇ£¬_________________£¬_________________¡£
£¨4£©±¾ÊµÑéµÃµ½µÄÊÇ·Ûĩ״µ»ÆÉ«µÄ·ÛÄ©£¬Ã»Óеõ½¿é×´µÄ¾§Ì壬¿ÉÄܵÄÔÒòÊÇ£º__________________________________¡£
£¨5£©¼ìÑéijƷÅƽ´ÓÍÖÐÊÇ·ñ¼ÓÓÐNaFeEDTA¡¤3H2O£¬ÏÈÈ¡20mL½´ÓͼÓÈë10rnL75£¥ÒÒ´¼£¬½«ËùµÃ³ÁµíÎïÈÜÓÚË®£¬²¢ÓÃijÑÎËáµ÷µ½pH<0£®5£¬ÆÆ»µÅäºÏÎȻºó¼ÓÈëijÖÖï§ÑμìÑ飬¸Ãï§ÑÎÊÇ_________________£¨Ð´»¯Ñ§Ê½£©¡£
£¨6£©±¾´ÎʵÑéµÄNaFeEDTA¡¤3H2OµÄʵ¼Ê²úÂÊΪ£º_________________¡£
¢Ù°Ñ0£®4g£¨0£®0lmol£©NaOHÈÜÓÚl0mLÕôÁóË®£¬È»ºóÔÙ¼ÓÈë3£®8g£¨0£®01mo1£©Na2H2EDTA¡¤2H2O£¬°ÑÈÜҺ΢ÈÈ£¬Ö±ÖÁ¹ÌÌåÍêÈ«Èܽ⡣
¢ÚÓú¬ÓÐÂÈ»¯ÍÔÓÖʵÄÂÈ»¯ÌúÌá´¿²¢ÖƵÃFeCl3¡¤6H2O¡£³ÆÈ¡2£®5g£¨0£®009mol£©FeCl3¡¤6H2OÈÜÓè5mL£¬ÕôÁóË®ÖУ¨²¢¼ÓlµÎÑÎËᣩ¡£
¢Û½«¢Ù¡¢¢ÚÖƵõÄÁ½ÈÜÒº»ìºÏ
¢Ü¼ÓÈÈÈÜÒºÖÁ·ÐÌÚ£¬Õô·¢Å¨ËõÖ±ÖÁ´ó²¿·Ö·Ûĩ״µÄ¹ÌÌåÎö³ö¡£
¢ÝÀäÈ´¡¢¼õѹ¹ýÂË£¬ÏÈÓñùˮϴµÓéËÓÃÒÒ´¼Ï´µÓ¡£
¢Þ½«¹ÌÌåÁ¹¸É£¬³ÆµÃÖƵõĵ»ÆÉ«·ÛÄ©2£®8g
ÊԻشðÏÂÁÐÎÊÌâ
£¨1£©ÔÚ²½Öè¢ÙÖУ¬Ðë¼ÓÈë¹ýÁ¿µÄ¼î£¬ÊÇÒòΪ_________________¡£
£¨2£©½«º¬ÓÐÂÈ»¯ÍÔÓÖʵÄÂÈ»¯ÌúÈÜÒº·ÖÀë¿ÉÓõļòµ¥·½·¨ÊÇ___________________________£»¼ÓÏÔÉ«Àûºó·Ö±ð·¢Éú·´Ó¦µÄÀë×Ó·½³ÌʽΪ_______________________£»_________________________¡£
£¨3£©²½Öè¢ÝÖÐÓñùË®ºÍÒÒ´¼Ï´µÓµÄÄ¿µÄÊÇ£¬_________________£¬_________________¡£
£¨4£©±¾ÊµÑéµÃµ½µÄÊÇ·Ûĩ״µ»ÆÉ«µÄ·ÛÄ©£¬Ã»Óеõ½¿é×´µÄ¾§Ì壬¿ÉÄܵÄÔÒòÊÇ£º__________________________________¡£
£¨5£©¼ìÑéijƷÅƽ´ÓÍÖÐÊÇ·ñ¼ÓÓÐNaFeEDTA¡¤3H2O£¬ÏÈÈ¡20mL½´ÓͼÓÈë10rnL75£¥ÒÒ´¼£¬½«ËùµÃ³ÁµíÎïÈÜÓÚË®£¬²¢ÓÃijÑÎËáµ÷µ½pH<0£®5£¬ÆÆ»µÅäºÏÎȻºó¼ÓÈëijÖÖï§ÑμìÑ飬¸Ãï§ÑÎÊÇ_________________£¨Ð´»¯Ñ§Ê½£©¡£
£¨6£©±¾´ÎʵÑéµÄNaFeEDTA¡¤3H2OµÄʵ¼Ê²úÂÊΪ£º_________________¡£
£¨1£©¼î¹ýÁ¿»áʹ²úÎïÖÐÓÐÇâÑõ»¯ÌúÉú³É£¬Ó°Ïì´¿¶È
£¨2£©Ö½ÉϲãÎö£»Fe3++3NH3¡¤H2O=Fe(OH)3¡ý+3NH4+£»Cu2++4NH3¡¤H2O=Cu(NH3)42++4H2O
£¨3£©Ï´µÓ³ýÈ¥¾§Ìå±íÃ渽×ŵÄNa2H2EDTA¡¢ÂÈ»¯ÎïµÈÔÓÖÊ£¬ÓñùˮϴµÓ¿É½µµÍÏ´µÓ¹ý³ÌÖÐ
NaFeEDTA¡¤3H2OµÄËðºÄ£»Óþƾ«Ï´µÓ¿ÉʹÆä¿ìËÙ¸ÉÔï
£¨4£©²½Öè¢ÜÖÐÈܼÁÕô·¢Ëٶȿ죬²½Öè¢ÝÀäÈ´ËÙÂÊ¿ì
£¨5£©NH4SCN
£¨6£©78.9£¥
£¨2£©Ö½ÉϲãÎö£»Fe3++3NH3¡¤H2O=Fe(OH)3¡ý+3NH4+£»Cu2++4NH3¡¤H2O=Cu(NH3)42++4H2O
£¨3£©Ï´µÓ³ýÈ¥¾§Ìå±íÃ渽×ŵÄNa2H2EDTA¡¢ÂÈ»¯ÎïµÈÔÓÖÊ£¬ÓñùˮϴµÓ¿É½µµÍÏ´µÓ¹ý³ÌÖÐ
NaFeEDTA¡¤3H2OµÄËðºÄ£»Óþƾ«Ï´µÓ¿ÉʹÆä¿ìËÙ¸ÉÔï
£¨4£©²½Öè¢ÜÖÐÈܼÁÕô·¢Ëٶȿ죬²½Öè¢ÝÀäÈ´ËÙÂÊ¿ì
£¨5£©NH4SCN
£¨6£©78.9£¥
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
´ÓÏÂÁи÷ÎïÖʵÄÃû³ÆÉÏÅжÏÆäʵ¼Ê³É·ÖµÄ˵·¨ÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢²£Á§¸ÖÊÇÒ»ÖÖÐÂÐ͵ĺϽð²ÄÁÏ | B¡¢¸Ö¾«¹øÊÇÓÃÒ»ÖÖÓÅÖʵÄÌúºÏ½ðÖÆÔìµÄ£¬ÆäÄÍѹÐÔÄܷdz£ºÃ£¬¿ÉÒÔÖƳɸßѹ¹ø | C¡¢Å¯Æø¹ÜµÀÒÔ¼°Å¯ÆøƬµÈ±íÃæË¢ÁËÒ»²ã¡°Òø·Û¡±£¬ÆäʵÖÊÊÇÂÁ·Û | D¡¢¼ÓÌú½´Ó;ÍÊÇÔÚ½´ÓÍÖмÓÈëÁËÄÉÃ×¼¶±ðµÄÌú·Û |
½áºÏѧ¹ýµÄ»¯Ñ§ÖªÊ¶£¬ÅжÏÏÂÁÐÐðÊöÕýÈ·µÄÊÇ £¨ £©
A£®Ã÷·¯ºÍƯ°×·Û³£ÓÃÓÚ×ÔÀ´Ë®µÄ¾»»¯ºÍɱ¾úÏû¶¾£¬Á½ÕßµÄ×÷ÓÃÔÀíÏàͬ |
B£®ÈÕ³£Éú»îÖÐÎÞË®ÒÒ´¼³£ÓÃÓÚɱ¾úÏû¶¾ |
C£®¶¡´ï¶ûЧӦÊÇÇø·Ö½ºÌåºÍÈÜÒºµÄÒ»ÖÖ³£ÓÃÎïÀí·½·¨ |
D£®¼ÓÌú½´Ó;ÍÊÇÔÚ½´ÓÍÖмÓÈëÁËÄÉÃ×¼¶±ðµÄÌú·Û£¬ÊÇÎÒ¹úµÄ²¹Ìú¹¤³Ì |