ÌâÄ¿ÄÚÈÝ
![](http://thumb.1010pic.com/pic3/upload/images/201407/58/728a1d28.png)
A¡¢ÉÏÊöÈýÖÖÈÜÒºÖУºc£¨ OH-£©´óС£º¢Û£¾¢Ú£¾¢Ù |
B¡¢ÎïÖÊËáÐԵıȽϣºCH3COOH£¾HF£¾H2CO3 |
C¡¢·´Ó¦½áÊøºóËùµÃÁ½ÈÜÒºÖУ¬c£¨CH3COO-£©£¾c£¨F-£© |
D¡¢¢ÙºÍ ¢Û·´Ó¦½áÊøºóËùµÃÈÜÒºÖУºc£¨F-£©+c£¨HF£©¨T0.10mol/L |
¿¼µã£ºÈõµç½âÖÊÔÚË®ÈÜÒºÖеĵçÀëƽºâ
רÌ⣺µçÀëƽºâÓëÈÜÒºµÄpHרÌâ
·ÖÎö£ºA¡¢HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÆäÈÜÒºÖÐc£¨H+£©½Ï´ó£¬ÇâÑõ¸ùÀë×ÓµÄŨ¶È½ÏС£¬¶øNaHCO3ÈÜÒºÊÇÇ¿¼îÈõËáµÄËáʽÑÎË®½â³Ì¶È´óÓÚµçÀë³Ì¶È£¬ÈÜÒº³Ê¼îÐÔ£»
B¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÎïÖÊËáÐԵıȽϣºHF£¾CH3COOH£¾H2CO3£»
C¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ËùÒÔÒõÀë×ÓË®½â³Ì¶Èc£¨CH3COO-£©£¾c£¨F-£©£»
D¡¢HFÈÜÒººÍNaHCO3ÈÜÒº·´Ó¦Éú³É·ú»¯ÄÆÈÜÒº£¬ÎïÁÏÊغã¼ÆË㣻
B¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÎïÖÊËáÐԵıȽϣºHF£¾CH3COOH£¾H2CO3£»
C¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ËùÒÔÒõÀë×ÓË®½â³Ì¶Èc£¨CH3COO-£©£¾c£¨F-£©£»
D¡¢HFÈÜÒººÍNaHCO3ÈÜÒº·´Ó¦Éú³É·ú»¯ÄÆÈÜÒº£¬ÎïÁÏÊغã¼ÆË㣻
½â´ð£º
½â£ºA¡¢HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÆäÈÜÒºÖÐc£¨H+£©½Ï´ó£¬ÇâÑõ¸ùÀë×ÓµÄŨ¶È½ÏС£¬¶øNaHCO3ÈÜÒºÊÇÇ¿¼îÈõËáµÄËáʽÑÎË®½â³Ì¶È´óÓÚµçÀë³Ì¶È£¬ÈÜÒº³Ê¼îÐÔ£¬ËùÒÔc£¨ OH-£©´óС£º¢Û£¾¢Ú£¾¢Ù£¬¹ÊAÕýÈ·£»
B¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÎïÖÊËáÐԵıȽϣºHF£¾CH3COOH£¾H2CO3£¬¹ÊB´íÎó£»
C¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ËùÒÔÒõÀë×ÓË®½â³Ì¶Èc£¨CH3COO-£©£¾c£¨F-£©£¬ÈÜÒºÖÐÕâÖÖÀë×ÓŨ¶ÈԽС£¬ËùÒÔc£¨CH3COO-£©£¼c£¨F-£©£¬¹ÊC´íÎó£»
D¡¢HFÈÜÒººÍNaHCO3ÈÜÒº·´Ó¦Éú³É·ú»¯ÄÆÈÜÒº£¬ÎïÁÏÊغãc£¨F-£©+c£¨HF£©¨T
=0.05mol/L£¬¹ÊD´íÎó£»¹ÊÑ¡A£®
B¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ÎïÖÊËáÐԵıȽϣºHF£¾CH3COOH£¾H2CO3£¬¹ÊB´íÎó£»
C¡¢Í¼ÏóÖзÖÎö£¬HFµÄËáÐÔ±ÈCH3COOHÇ¿£¬ËùÒÔÒõÀë×ÓË®½â³Ì¶Èc£¨CH3COO-£©£¾c£¨F-£©£¬ÈÜÒºÖÐÕâÖÖÀë×ÓŨ¶ÈԽС£¬ËùÒÔc£¨CH3COO-£©£¼c£¨F-£©£¬¹ÊC´íÎó£»
D¡¢HFÈÜÒººÍNaHCO3ÈÜÒº·´Ó¦Éú³É·ú»¯ÄÆÈÜÒº£¬ÎïÁÏÊغãc£¨F-£©+c£¨HF£©¨T
0.10mol/L¡Á1L |
1L+1L |
µãÆÀ£º±¾Ì⿼²éÁËÈõµç½âÖʵĵçÀëƽºâÓ¦Óã¬Í¼Ïó·ÖÎöÄÜÁ¦£¬Ë®µÄµçÀëÓ°ÏìÒòËØ£¬Ö÷Òª¿¼²éËáÐÔÇ¿ÈõµÄ±È½Ï£¬ÑÎÀàË®½âµÄÓ¦Ó㬵ç½âÖÊÈÜÒºÖÐÔªËØÊغãµÄÓ¦Óã®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÏÂÁз´Ó¦ÊôÓÚÈ¡´ú·´Ó¦µÄÊÇ£¨¡¡¡¡£©
A¡¢ÒÒ´¼ºÍŨÁòËá»ìºÏ¼ÓÈÈÖÁ170¡æ |
B¡¢±½ºÍÒºäå»ìºÏºó¼ÓÈëÉÙÁ¿Ìúм |
C¡¢¼×±½ÓëËáÐÔ¸ßÃÌËá¼ØÈÜÒº»ìºÏ |
D¡¢ÒÒϩͨÈëËáÐÔ¸ßÃÌËá¼ØÈÜÒºÖÐ |
ÏÂÁÐ˵·¨ÖУ¬ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢HClºÍH2SO4ÊôÓÚͬÀ໯ºÏÎµ«ËüÃÇÔÚË®ÈÜÒºÀïµçÀëʱÉú³ÉÓв»Í¬µÄÒõÀë×Ó£¬ËùÒÔËüÃǵĻ¯Ñ§ÐÔÖÊÓÐËù²»Í¬ |
B¡¢ÎÞÑõËáµÄÕýÑÎÒ»¶¨²»º¬Çâ¡¢ÑõÔªËØ |
C¡¢ÄܵçÀë²úÉúÇâÀë×ӵĻ¯ºÏÎïÒ»¶¨ÊôÓÚËá |
D¡¢½«Cu£¨OH£©2¼ÓÈëµ½µÎÓÐʯÈïÊÔÒºµÄÕôÁóË®ÖУ¬ÈÜÒº³ÊÀ¶É« |
ÏÂÃæ¹ØÓÚʵÑé²Ù×÷¡¢ÏÖÏó»òÔÀíµÄÐðÊöÖÐÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A¡¢ÔÚ¡°°¢Ë¾Æ¥Áֵĺϳɡ±ÊµÑéÖУ¬°Ñ´ÓÑÎËáÖÐÎö³öµÄ¾§Ìå½øÐгéÂË£¬ÓÃÒÒ´¼Ï´µÓ¾§Ìå1¡«2´Î£¬È»ºó³éÂË£¬½«¾§ÌåתÒƵ½±íÃæÃóÉÏ£¬¸ÉÔïºó³ÆÆäÖÊÁ¿£¬¼ÆËã²úÂÊ |
B¡¢¾§Ìå¿ÅÁ£µÄ´óСÓë½á¾§Ìõ¼þÓйأ¬ÈÜÖʵÄÈܽâ¶ÈԽС£¬»òÈÜÒºµÄŨ¶ÈÔ½¸ß£¬»òÈܼÁµÄÕô·¢ËÙ¶ÈÔ½¿ì£¬Îö³öµÄ¾§Á£¾ÍԽϸС |
C¡¢ÑÀ¸àÖеı£Êª¼Á£¨¸ÊÓÍ£©£¬¿ÉÓÃÇâÑõ»¯Í×ÇÒº¸ù¾Ý²úÉúµÄçÀ¶É«³ÁµíÀ´¼ìÑé |
D¡¢ÔÚÊÔ¹ÜÖн«Ò»¶¨Á¿µÄŨÏõËᡢŨÁòËáºÍ±½»ìºÏ£¬Óþƾ«µÆÖ±½Ó¼ÓÈȼ¸·ÖÖÓ£¬¼´¿ÉÖƵÃÏõ»ù±½ |
¿ÉÒÔÑéÖ¤ÁòÔªËصķǽðÊôÐÔ±ÈÂÈÔªËØÈõµÄÊÂʵÊÇ£¨¡¡¡¡£©
¢ÙÁòºÍÇâÆøÔÚ¼ÓÈÈÌõ¼þÏÂÄÜÐγÉH2S¡¢H2SÊÜÈÈ300¡æ×óÓҷֽ⣮ÂÈÆøºÍÇâÆøÔÚµãȼ»ò¹âÕÕÏÂÉú³É ÂÈ»¯Ç⣬ÂÈ»¯ÇâºÜÄÑ·Ö½â
¢ÚÏòÇâÁòËáÈÜÒºÖеÎÈëÂÈË®Óе¥ÖÊÁòÉú³É
¢ÛÁò¡¢ÂÈÆø·Ö±ðÓëͺÍÌú·´Ó¦²úÎïÊÇFeS¡¢Cu2S¡¢FeCl3¡¢CuCl2
¢Ü¸ßÂÈËᣨHClO4£©µÄËáÐÔÇ¿ÓÚÁòËᣮ
¢ÙÁòºÍÇâÆøÔÚ¼ÓÈÈÌõ¼þÏÂÄÜÐγÉH2S¡¢H2SÊÜÈÈ300¡æ×óÓҷֽ⣮ÂÈÆøºÍÇâÆøÔÚµãȼ»ò¹âÕÕÏÂÉú³É ÂÈ»¯Ç⣬ÂÈ»¯ÇâºÜÄÑ·Ö½â
¢ÚÏòÇâÁòËáÈÜÒºÖеÎÈëÂÈË®Óе¥ÖÊÁòÉú³É
¢ÛÁò¡¢ÂÈÆø·Ö±ðÓëͺÍÌú·´Ó¦²úÎïÊÇFeS¡¢Cu2S¡¢FeCl3¡¢CuCl2
¢Ü¸ßÂÈËᣨHClO4£©µÄËáÐÔÇ¿ÓÚÁòËᣮ
A¡¢¢Ù¢Ú¢Û¢Ü | B¡¢Ö»ÓÐ¢Ù¢Ú |
C¡¢Ö»ÓÐ¢Ú¢Û¢Ü | D¡¢Ö»ÓÐ¢Û¢Ü |
ÓÐÒ»Àà×î¼òµ¥µÄÓлú¹è»¯Îï½Ð¹èÍ飬ËüÃǵÄ×é³ÉÓëÍéÌþÏàËÆ£®ÏÂÁÐ˵·¨ÖдíÎóµÄÊÇ£¨¡¡¡¡£©
A¡¢¹èÍéµÄ·Ö×Óʽ¿ÉÓÃͨʽSinH2n+2±íʾ |
B¡¢¼×¹èÍ飨SiH4£©Ã»Óм×ÍéÎȶ¨ |
C¡¢¼×¹èÍéÒ×ȼÉÕ£¬Éú³ÉSiO2ºÍH2O |
D¡¢¼×¹èÍéµÄÃܶȱȼ×ÍéµÄÃܶÈС |
ÔÚ2LÃܱÕÈÝÆ÷ÖУ¬ÔÚÒ»¶¨Ìõ¼þÏ·¢ÉúA£¨g£©+3B£¨g£©?2C£¨g£©£¬ÔÚ10sÄÚ·´Ó¦ÎïAµÄŨ¶ÈÓÉ1mol/L½µµ½0.4mol/L£¬Ôò¦Í£¨C£©Îª£¨¡¡¡¡£©
A¡¢0.06mol/£¨L?s£© |
B¡¢0.12mol/£¨L?s£© |
C¡¢0.6mol/£¨L?s£© |
D¡¢1.2mol/£¨L?s£© |
ÖÆÔìÌ«ÑôÄܵç³ØÐèÒª¸ß´¿¶ÈµÄ¹è£¬¹¤ÒµÉÏÖƸߴ¿¹è³£ÓÃÒÔÏ·´Ó¦ÊµÏÖ
¢ÙSi£¨s£©+3HCl£¨g£©
SiHCl3£¨g£©+H2£¨g£© ¢ÚSiHCl3+H2
Si+3HCl
¶ÔÉÏÊöÁ½¸ö·´Ó¦µÄÏÂÁÐÐðÊöÖУ¬´íÎóµÄÊÇ£¨¡¡¡¡£©
¢ÙSi£¨s£©+3HCl£¨g£©
| ||
| ||
¶ÔÉÏÊöÁ½¸ö·´Ó¦µÄÏÂÁÐÐðÊöÖУ¬´íÎóµÄÊÇ£¨¡¡¡¡£©
A¡¢Á½¸ö·´Ó¦¶¼ÊÇÖû»·´Ó¦ |
B¡¢·´Ó¦¢Ú²»ÊÇÖû»·´Ó¦ |
C¡¢¹¤ÒµÉÏÖƵøߴ¿¹è¿ÉÓÃÓÚ¼ÆËã»úоƬ |
D¡¢Á½¸ö·´Ó¦¶¼ÊÇÑõ»¯»¹Ô·´Ó¦ |