ÌâÄ¿ÄÚÈÝ
²ÉÓÃÁòËáͬ²Û½þ³öÈíÃÌ¿ó£¨Ö÷Òª³É·ÖMnO2£©ºÍ»ÆÍ¿ó£¨Ö÷Òª³É·ÖCuFeS2£©µÄй¤ÒÕ·½·¨ÌáÈ¡ÃÌ¡¢Í¡¢ÌúÔªËØ»ñµÃ³É¹¦£¬·ûºÏÂÌÉ«»¯Ñ§Ë¼Ï룬Éú²úÁ÷³ÌʾÒâÈçÏ£ºÒÑÖª£º
²½Öè¢Ù£º5MnO2+2CuFeS2+10H2SO4=5MnSO4+Fe2£¨SO4£©3+2CuSO4+4S+10H2O
£¨1£©Çëд³öMnO2Ò»ÖÖÓÃ;£º
¸ù¾ÝϱíÊý¾Ý£¬»Ø´ðÏà¹ØÎÊÌ⣮
£¨2£©E£º
£¨3£©Èôc£¨MnSO4£©=3¡Á10-6 mol?L-1£¬c£¨CO32-£©=3.3¡Á10-5 mol?L-1£¬ÔòMnSO4ÈÜÒºÓë̼ËáÑÎÈÜÒº°´Ìå»ý±È2£º1»ìºÏ£¬Ç¡ºÃ´ïµ½Èܽâƽºâ£¬MnCO3µÄKsp=
£¨4£©Çëд³ö²½Öè¢Ü·¢ÉúµÄÀë×Ó·´Ó¦·½³Ìʽ£º
£¨5£©²½Öè¢Ý£¬ÔÚ²»Í¬Î¶ÈÏ·ֽâ¿ÉµÃµ½Ã̵IJ»Í¬Ñõ»¯Î¸ù¾ÝÈçͼÊý¾Ý¼ÆË㣺530¡æÖÁ1000¡æʱ£¬¿ÉµÃÒ»ÖÖ¹ÌÌå´¿¾»ÎÆ仯ѧʽΪ£º
£¨6£©³ÆÈ¡0.435gÈíÃÌ¿óÓÚÉÕ±ÖУ¬ÔÙ·Ö±ðÍùÉÕ±ÖмÓÈë¹ýÁ¿µÄ20.00mL 0.1000mol?L-1 Na2C2O4ÈÜÒººÍ¹ýÁ¿µÄÁòËᣬ³ä·Ö½Á°èÈܽ⣬¹ýÂË£¬½«ÂËҺתÒÆÖÁ׶ÐÎÆ¿ÖУ¬ÓÃ0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£®·´Ó¦Ê½ÈçÏ£ºMnO2+Na2C2O4+2H2SO4=MnSO4+Na2SO4+2CO2¡ü+2H2O
¢Ùд³öËáÐÔKMnO4ÈÜÒºµÎ¶¨Ê£ÓàNa2C2O4ÈÜÒºµÄÀë×Ó·´Ó¦·½³Ìʽ£º
¢Ú¼ÆËãÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿
²½Öè¢Ù£º5MnO2+2CuFeS2+10H2SO4=5MnSO4+Fe2£¨SO4£©3+2CuSO4+4S+10H2O
£¨1£©Çëд³öMnO2Ò»ÖÖÓÃ;£º
´ß»¯¼Á¡¢ÖƱ¸ÂÈÆø
´ß»¯¼Á¡¢ÖƱ¸ÂÈÆø
£®¸ù¾ÝϱíÊý¾Ý£¬»Ø´ðÏà¹ØÎÊÌ⣮
Cu£¨OH£©2 | Fe£¨OH£©3 | Mn£¨OH£©2 | Fe£¨OH£©2 | |
¿ªÊ¼³ÁµípH | 4.2 | 1.5 | 7.3 | 6.4 |
ÍêÈ«³ÁµípH | 6.7 | 3.2 | 9.8 | 9.0 |
Fe£¨OH£©3
Fe£¨OH£©3
£¬F£ºCu£¨OH£©2
Cu£¨OH£©2
£¬DÖÐÖ÷ÒªÈÜÖÊ£¨NH4£©2SO4
£¨NH4£©2SO4
£¨Ìѧʽ£©£®£¨3£©Èôc£¨MnSO4£©=3¡Á10-6 mol?L-1£¬c£¨CO32-£©=3.3¡Á10-5 mol?L-1£¬ÔòMnSO4ÈÜÒºÓë̼ËáÑÎÈÜÒº°´Ìå»ý±È2£º1»ìºÏ£¬Ç¡ºÃ´ïµ½Èܽâƽºâ£¬MnCO3µÄKsp=
2.2¡Á10-11
2.2¡Á10-11
£®£¨4£©Çëд³ö²½Öè¢Ü·¢ÉúµÄÀë×Ó·´Ó¦·½³Ìʽ£º
Mn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+
Mn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+
£®£¨5£©²½Öè¢Ý£¬ÔÚ²»Í¬Î¶ÈÏ·ֽâ¿ÉµÃµ½Ã̵IJ»Í¬Ñõ»¯Î¸ù¾ÝÈçͼÊý¾Ý¼ÆË㣺530¡æÖÁ1000¡æʱ£¬¿ÉµÃÒ»ÖÖ¹ÌÌå´¿¾»ÎÆ仯ѧʽΪ£º
Mn2O3
Mn2O3
£®£¨6£©³ÆÈ¡0.435gÈíÃÌ¿óÓÚÉÕ±ÖУ¬ÔÙ·Ö±ðÍùÉÕ±ÖмÓÈë¹ýÁ¿µÄ20.00mL 0.1000mol?L-1 Na2C2O4ÈÜÒººÍ¹ýÁ¿µÄÁòËᣬ³ä·Ö½Á°èÈܽ⣬¹ýÂË£¬½«ÂËҺתÒÆÖÁ׶ÐÎÆ¿ÖУ¬ÓÃ0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£®·´Ó¦Ê½ÈçÏ£ºMnO2+Na2C2O4+2H2SO4=MnSO4+Na2SO4+2CO2¡ü+2H2O
¢Ùд³öËáÐÔKMnO4ÈÜÒºµÎ¶¨Ê£ÓàNa2C2O4ÈÜÒºµÄÀë×Ó·´Ó¦·½³Ìʽ£º
5C2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O
5C2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O
£®¢Ú¼ÆËãÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿
20.0%
20.0%
£®·ÖÎö£º£¨1£©¸ù¾ÝËùѧ֪ʶÀ´»Ø´ð¶þÑõ»¯Ã̵Ä×÷Óã»
£¨2£©¸ù¾ÝÀë×Ó³ÁµíËùÐèµ÷½ÚµÄÈÜÒºµÄËá¼îÐÔÇé¿öÊý¾ÝÀ´»Ø´ð£»
£¨3£©¸ù¾ÝMnCO3µÄKsp=[Mn2+]?[CO32-]À´¼ÆË㣻
£¨4£©Ïòº¬ÓÐÃÌÀëµÄÑÎÖÐͨÈë¶þÑõ»¯Ì¼ºÍ°±Æø£¬¿ÉÒÔ»ñµÃ̼ËáÃ̳Áµí£»
£¨5£©¸ù¾ÝͼʾÐÅÏ¢£º530¡æÊÇ»ñµÃµÄÊÇ8.7gµÄ¶þÑõ»¯ÃÌ£¬ÔÚ1000¡æÊǵõ½µÄÊÇ7.9gMnµÄÑõ»¯ÎïÀ´¼ÆËã»Ø´ð£»
£¨6£©¢Ù¸ßÃÌËá¼Ø¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«²ÝËá¸ùÑõ»¯£»
¢Ú¸ù¾ÝÃÌÔªËØÊغãµÄ˼ÏëÀ´¼ÆËã¶þÑõ»¯Ã̵İٷֺ¬Á¿£®
£¨2£©¸ù¾ÝÀë×Ó³ÁµíËùÐèµ÷½ÚµÄÈÜÒºµÄËá¼îÐÔÇé¿öÊý¾ÝÀ´»Ø´ð£»
£¨3£©¸ù¾ÝMnCO3µÄKsp=[Mn2+]?[CO32-]À´¼ÆË㣻
£¨4£©Ïòº¬ÓÐÃÌÀëµÄÑÎÖÐͨÈë¶þÑõ»¯Ì¼ºÍ°±Æø£¬¿ÉÒÔ»ñµÃ̼ËáÃ̳Áµí£»
£¨5£©¸ù¾ÝͼʾÐÅÏ¢£º530¡æÊÇ»ñµÃµÄÊÇ8.7gµÄ¶þÑõ»¯ÃÌ£¬ÔÚ1000¡æÊǵõ½µÄÊÇ7.9gMnµÄÑõ»¯ÎïÀ´¼ÆËã»Ø´ð£»
£¨6£©¢Ù¸ßÃÌËá¼Ø¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«²ÝËá¸ùÑõ»¯£»
¢Ú¸ù¾ÝÃÌÔªËØÊغãµÄ˼ÏëÀ´¼ÆËã¶þÑõ»¯Ã̵İٷֺ¬Á¿£®
½â´ð£º½â£º£¨1£©ÔÚËùѧ֪ʶÖУ¬¶þÑõ»¯Ã̵Ä×÷ÓÃÓУºÔÚË«ÑõË®µÄ·Ö½â·´Ó¦ÖÐ×ö´ß»¯¼Á£¬ÔÚʵÑéÊÒ¿ÉÒÔÓöþÑõ»¯Ã̺ÍŨÑÎËá·´Ó¦ÖÆÈ¡ÂÈÆø£¬¹Ê´ð°¸Îª£º´ß»¯¼Á¡¢ÖƱ¸ÂÈÆø£»
£¨2£©¸ù¾Ý±íÖÐÊý¾Ý£¬ÇâÑõ»¯ÌúÔÚpH=6.4¿ªÊ¼³Áµí£¬µ±pH=9.0ʱ³ÁµíÍêÈ«£¬ÇâÑõ»¯ÍÔÚpH=4.2¿ªÊ¼³Áµí£¬µ±pH=6.7ʱ³ÁµíÍêÈ«£¬ËùÒÔ²½Öè¢ÚÏÈ»ñµÃµÄÊÇÇâÑõ»¯Ìú£¬È»ºó»ñµÃµÄÊÇÇâÑõ»¯Í£¬×îºóÈÜÒºÊÇÁòËá泥¬
¹Ê´ð°¸Îª£ºFe£¨OH£©3¡¢Cu£¨OH£©2¡¢£¨NH4£©2SO4£»
£¨3£©MnCO3µÄKsp=[Mn2+]?[CO32-]=
¡Á
=2.2¡Á10-11£¬¹Ê´ð°¸Îª£º2.2¡Á10-11£»
£¨4£©Ïòº¬ÓÐÃÌÀëµÄÑÎÖÐͨÈë¶þÑõ»¯Ì¼ºÍ°±Æø£¬¿ÉÒÔ»ñµÃ̼ËáÃ̳Áµí£¬ÔÀíΪ£ºMn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+£¬
¹Ê´ð°¸Îª£ºMn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+£»
£¨5£©530¡æÊÇ»ñµÃµÄÊÇ8.7gµÄ¶þÑõ»¯ÃÌ£¬ÎïÖʵÄÁ¿ÊÇ0.1mol£¬ÔÚ1000¡æÊǵõ½µÄÊÇ7.9gMnµÄÑõ»¯ÎÏà¶Ô·Ö×ÓÖÊÁ¿=
=79»òÊÇ79µÄÕûÊý±¶£¬ËùÒÔÊÇMn2O3£¬¹Ê´ð°¸Îª£ºMn2O3£»
£¨6£©¢Ù¸ßÃÌËá¼Ø¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«²ÝËá¸ùÑõ»¯£¬ÊµÖÊÊÇ£ºC2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O£¬
¹Ê´ð°¸Îª£ºC2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O£»
¢Ú0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£¬Ôò²ÝËáÄƵÄÊ£ÓàÁ¿=0.1000mol?L-1¡Á0.004L¡Á
=0.001mol£¬ËùÒÔ·´Ó¦µôµÄ²ÝËáÄƵÄÁ¿ÊÇ0.001mol£¬¸ù¾Ý·´Ó¦MnO2+Na2C2O4+2H2SO4=MnSO4+Na2SO4+2CO2¡ü+2H2O£¬
0.001mol Na2C2O4ÈÜÒºÏûºÄµôµÄ¶þÑõ»¯Ã̵ÄÎïÖʵÄÁ¿Îª0.001mol£¬ËùÒÔÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿=
¡Á100%=20.0%£¬¹Ê´ð°¸Îª£º20%£®
£¨2£©¸ù¾Ý±íÖÐÊý¾Ý£¬ÇâÑõ»¯ÌúÔÚpH=6.4¿ªÊ¼³Áµí£¬µ±pH=9.0ʱ³ÁµíÍêÈ«£¬ÇâÑõ»¯ÍÔÚpH=4.2¿ªÊ¼³Áµí£¬µ±pH=6.7ʱ³ÁµíÍêÈ«£¬ËùÒÔ²½Öè¢ÚÏÈ»ñµÃµÄÊÇÇâÑõ»¯Ìú£¬È»ºó»ñµÃµÄÊÇÇâÑõ»¯Í£¬×îºóÈÜÒºÊÇÁòËá泥¬
¹Ê´ð°¸Îª£ºFe£¨OH£©3¡¢Cu£¨OH£©2¡¢£¨NH4£©2SO4£»
£¨3£©MnCO3µÄKsp=[Mn2+]?[CO32-]=
3¡Á10-6¡Á2 |
3 |
3.3¡Á10-5 |
3 |
£¨4£©Ïòº¬ÓÐÃÌÀëµÄÑÎÖÐͨÈë¶þÑõ»¯Ì¼ºÍ°±Æø£¬¿ÉÒÔ»ñµÃ̼ËáÃ̳Áµí£¬ÔÀíΪ£ºMn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+£¬
¹Ê´ð°¸Îª£ºMn2++2NH3+CO2+H2O=MnCO3¡ý+2NH4+£»
£¨5£©530¡æÊÇ»ñµÃµÄÊÇ8.7gµÄ¶þÑõ»¯ÃÌ£¬ÎïÖʵÄÁ¿ÊÇ0.1mol£¬ÔÚ1000¡æÊǵõ½µÄÊÇ7.9gMnµÄÑõ»¯ÎÏà¶Ô·Ö×ÓÖÊÁ¿=
7.9 |
0.1 |
£¨6£©¢Ù¸ßÃÌËá¼Ø¾ßÓÐÇ¿Ñõ»¯ÐÔ£¬¿ÉÒÔ½«²ÝËá¸ùÑõ»¯£¬ÊµÖÊÊÇ£ºC2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O£¬
¹Ê´ð°¸Îª£ºC2O42-+2MnO4-+16H+=2Mn2++10CO2¡ü+8H2O£»
¢Ú0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£¬Ôò²ÝËáÄƵÄÊ£ÓàÁ¿=0.1000mol?L-1¡Á0.004L¡Á
5 |
2 |
0.001mol Na2C2O4ÈÜÒºÏûºÄµôµÄ¶þÑõ»¯Ã̵ÄÎïÖʵÄÁ¿Îª0.001mol£¬ËùÒÔÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿=
0.001mol¡Á87g/mol |
0.435g |
µãÆÀ£º±¾ÌâÊÇÒ»µÀÎïÖʵķÖÀëºÍÌᴼ֪ʶµÄ×ÛºÏÌâÄ¿£¬ÒªÇóѧÉú¾ßÓзÖÎöºÍ½â¾öÎÊÌâµÄÄÜÁ¦£¬×ÛºÏÐÔ½ÏÇ¿£¬ÄѶȽϴó£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
²ÉÓÃÁòËáͬ²Û½þ³öÈíÃÌ¿ó£¨Ö÷Òª³É·ÖMnO2£©ºÍ»ÆÍ¿ó£¨Ö÷Òª³É·ÖCuFeS2£©µÄй¤ÒÕ·½·¨ÌáÈ¡ÃÌ¡¢Í¡¢ÌúÔªËØ»ñµÃ³É¹¦£¬·ûºÏÂÌÉ«»¯Ñ§Ë¼Ï룬Éú²úÁ÷³ÌʾÒâÈçÏ£ºÒÑÖª£º
²½Öè¢Ù£º5MnO2+2CuFeS2+10H2SO4=5MnSO4+Fe2£¨SO4£©3+2CuSO4+4S+10H2O
£¨1£©Çëд³öMnO2Ò»ÖÖÓÃ;£º______£®
¸ù¾ÝϱíÊý¾Ý£¬»Ø´ðÏà¹ØÎÊÌ⣮
£¨2£©E£º______£¬F£º______£¬DÖÐÖ÷ÒªÈÜÖÊ______£¨Ìѧʽ£©£®
£¨3£©Èôc£¨MnSO4£©=3×10-6 mol?L-1£¬c£¨CO32-£©=3.3×10-5 mol?L-1£¬ÔòMnSO4ÈÜÒºÓë̼ËáÑÎÈÜÒº°´Ìå»ý±È2£º1»ìºÏ£¬Ç¡ºÃ´ïµ½Èܽâƽºâ£¬MnCO3µÄKsp=______£®
£¨4£©Çëд³ö²½Öè¢Ü·¢ÉúµÄÀë×Ó·´Ó¦·½³Ìʽ£º______£®
£¨5£©²½Öè¢Ý£¬ÔÚ²»Í¬Î¶ÈÏ·ֽâ¿ÉµÃµ½Ã̵IJ»Í¬Ñõ»¯Î¸ù¾ÝÈçͼÊý¾Ý¼ÆË㣺530¡æÖÁ1000¡æʱ£¬¿ÉµÃÒ»ÖÖ¹ÌÌå´¿¾»ÎÆ仯ѧʽΪ£º______£®
£¨6£©³ÆÈ¡0.435gÈíÃÌ¿óÓÚÉÕ±ÖУ¬ÔÙ·Ö±ðÍùÉÕ±ÖмÓÈë¹ýÁ¿µÄ20.00mL 0.1000mol?L-1 Na2C2O4ÈÜÒººÍ¹ýÁ¿µÄÁòËᣬ³ä·Ö½Á°èÈܽ⣬¹ýÂË£¬½«ÂËҺתÒÆÖÁ׶ÐÎÆ¿ÖУ¬ÓÃ0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£®·´Ó¦Ê½ÈçÏ£ºMnO2+Na2C2O4+2H2SO4=MnSO4+Na2SO4+2CO2¡ü+2H2O
¢Ùд³öËáÐÔKMnO4ÈÜÒºµÎ¶¨Ê£ÓàNa2C2O4ÈÜÒºµÄÀë×Ó·´Ó¦·½³Ìʽ£º______£®
¢Ú¼ÆËãÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿______£®
²½Öè¢Ù£º5MnO2+2CuFeS2+10H2SO4=5MnSO4+Fe2£¨SO4£©3+2CuSO4+4S+10H2O
£¨1£©Çëд³öMnO2Ò»ÖÖÓÃ;£º______£®
¸ù¾ÝϱíÊý¾Ý£¬»Ø´ðÏà¹ØÎÊÌ⣮
Cu£¨OH£©2 | Fe£¨OH£©3 | Mn£¨OH£©2 | Fe£¨OH£©2 | |
¿ªÊ¼³ÁµípH | 4.2 | 1.5 | 7.3 | 6.4 |
ÍêÈ«³ÁµípH | 6.7 | 3.2 | 9.8 | 9.0 |
£¨3£©Èôc£¨MnSO4£©=3×10-6 mol?L-1£¬c£¨CO32-£©=3.3×10-5 mol?L-1£¬ÔòMnSO4ÈÜÒºÓë̼ËáÑÎÈÜÒº°´Ìå»ý±È2£º1»ìºÏ£¬Ç¡ºÃ´ïµ½Èܽâƽºâ£¬MnCO3µÄKsp=______£®
£¨4£©Çëд³ö²½Öè¢Ü·¢ÉúµÄÀë×Ó·´Ó¦·½³Ìʽ£º______£®
£¨5£©²½Öè¢Ý£¬ÔÚ²»Í¬Î¶ÈÏ·ֽâ¿ÉµÃµ½Ã̵IJ»Í¬Ñõ»¯Î¸ù¾ÝÈçͼÊý¾Ý¼ÆË㣺530¡æÖÁ1000¡æʱ£¬¿ÉµÃÒ»ÖÖ¹ÌÌå´¿¾»ÎÆ仯ѧʽΪ£º______£®
£¨6£©³ÆÈ¡0.435gÈíÃÌ¿óÓÚÉÕ±ÖУ¬ÔÙ·Ö±ðÍùÉÕ±ÖмÓÈë¹ýÁ¿µÄ20.00mL 0.1000mol?L-1 Na2C2O4ÈÜÒººÍ¹ýÁ¿µÄÁòËᣬ³ä·Ö½Á°èÈܽ⣬¹ýÂË£¬½«ÂËҺתÒÆÖÁ׶ÐÎÆ¿ÖУ¬ÓÃ0.1000mol?L-1µÄKMnO4ÈÜÒºµÎ¶¨ÖÁÖյ㣬ÏûºÄÁË4.00mL KMnO4µÄÈÜÒº£®·´Ó¦Ê½ÈçÏ£ºMnO2+Na2C2O4+2H2SO4=MnSO4+Na2SO4+2CO2¡ü+2H2O
¢Ùд³öËáÐÔKMnO4ÈÜÒºµÎ¶¨Ê£ÓàNa2C2O4ÈÜÒºµÄÀë×Ó·´Ó¦·½³Ìʽ£º______£®
¢Ú¼ÆËãÈíÃÌ¿óÖÐMnO2µÄ°Ù·Öº¬Á¿______£®