¢ñ£®Ä³ÈÜÒºÖнöº¬Èç±íÀë×ÓÖеÄ5ÖÖÀë×Ó£¨²»¿¼ÂÇË®µÄµçÀë¼°Àë×ÓµÄË®½â£©£¬ÇÒ¸÷Àë×ÓµÄÎïÖʵÄÁ¿¾ùÏàµÈ¶¼Îª0.0lmol£®
ÒõÀë×Ó | SO42-¡¢NO3-¡¢Cl- |
ÑôÀë×Ó | Fe3+¡¢Fe2+¡¢NH4+¡¢Cu2+¡¢Al3+ |
¢ÙÈôÏòÔÈÜÒºÖмÓÈëKSCNÈÜÒº£¬ÎÞÃ÷ÏԱ仯£®
¢ÚÈôÏòÔÈÜÒºÖмÓÈë¹ýÁ¿µÄÑÎËᣬÓÐÆøÌåÉú³É£®ÈÜÒºÖÐÒõÀë×ÓÖÖÀ಻±ä£®
¢ÛÈôÏòÔÈÜÒºÖмÓÈëBaCl
2ÈÜÒº£¬Óа×É«³ÁµíÉú³É£®
ÊԻشðÏÂÁÐÎÊÌ⣺
£¨1£©ÈôÏÈÏòÔÈÜÒºÖÐÏȼÓÈë¹ýÁ¿µÄÑÎËᣬÔÙ¼ÓÈëKSCNÈÜÒº£¬ÏÖÏóÊÇ
£®¸Ã¹ý³ÌÖÐÉæ¼°µÄÀë×Ó·½³ÌʽÓÐ
¡¢
£®
£¨2£©ÏòÔÈÜÒºÖмÓÈë×ãÁ¿µÄNaOHÈÜÒº£¬³ä·Ö·´Ó¦ºó£¬¹ýÂË¡¢Ï´µÓ¡¢×ÆÉÕ£¬×îÖÕËùµÃ¹ÌÌåΪ
£¨Ð´»¯Ñ§Ê½£©£®
£¨3£©ÏòÔÈÜÒºÖмÓÈë×ãÁ¿ÑÎËáºó£¬ÓÃÅÅË®·¨ÊÕ¼¯Ëù²úÉúµÄÆøÌ岢ʹÆøÌåÇ¡ºÃ³äÂúÈÝÆ÷£¬½«ÈÝÆ÷µ¹ÖÃÓÚË®²ÛÖУ¬ÔÙÏòÈÝÆ÷ÖÐͨÈë
mLO
2£¨ÆøÌåÌå»ý¾ùÖ¸±ê×¼×´¿ö£©£¬ÄÜʹÈÜÒº³äÂú¸ÃÈÝÆ÷£®
¢ò£®a mol Cu
2SºÍb mol FeSͶÈëµ½v L c mol/LµÄÏ¡ÏõËáÖУ»³ä·Ö·´Ó¦£¬Éú³ÉNOÆøÌ壬ËùµÃ³ÎÇåÈÜÒº¿ÉÒÔ¿´×÷Cu£¨NO
3£©
2¡¢Fe£¨NO
3£©
3ºÍH
2SO
4µÄ»ìºÏÈÜÒº£¬Ôò·´Ó¦ÖÐδ±»»¹ÔµÄÏõËáµÄÎïÖʵÄÁ¿Îª
mol£¨ÓÃͬʱº¬ÓÐa¡¢b¡¢v¡¢cµÄ±í´ïʽ±íʾ£©£®
¢ó£®ÒÑÖªCH
4£¨g£©+2O
2£¨g£©¨TCO
2£¨g£©+2H
2O£¨l£©¡÷H
1=a kJ/mol£¬Óû¼ÆËã·´Ó¦CH
4£¨g£©+4NO£¨g£©¨T2N
2£¨g£©+CO
2£¨g£©+2H
2O£¨l£©µÄìʱä¡÷H
2£¬Ôò»¹ÐèÒª²éÕÒij·´Ó¦µÄìʱä¡÷H
3£¬µ±·´Ó¦Öи÷ÎïÖÊ»¯Ñ§¼ÆÁ¿ÊýÖ®±ÈΪ×î¼òÕûÊý±Èʱ¡÷H
3=b kJ/mol£¬Ôò¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³ÌʽΪ
£®¾Ý´Ë¼ÆËã³ö¡÷H
2=
kJ/mol£¨Óú¬aºÍbµÄʽ×Ó±íʾ£©£®