ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿³£ÎÂÏ£¬½«Ä³Ò»ÔªËáHAºÍNaOHÈÜÒºµÈÌå»ý»ìºÏ£¬ÊµÑéÐÅÏ¢ÈçÏ£º
ʵÑé±àºÅ | c(HA)/ mol¡¤L£1 | c(NaOH)/ mol¡¤L£1 | ·´Ó¦ºóÈÜÒºpH |
¼× | 0.1 | 0.1 | pH£½9 |
ÒÒ | c1 | 0.2 | pH£½7 |
ÏÂÁÐÅжϲ»ÕýÈ·µÄÊÇ
A.c1Ò»¶¨´óÓÚ0.2 mol¡¤L£1
B.HAµÄµçÀë·½³ÌʽÊÇHAH£«£«A£
C.¼×·´Ó¦ºóÈÜÒºÖУºc(Na£«) £¾ c(OH£)£¾ c(A£) £¾ c(H£«)
D.ÒÒ·´Ó¦ºóÈÜÒºÖУºc(Na£«) £¼ c(HA)£«c(A£)
¡¾´ð°¸¡¿C
¡¾½âÎö¡¿
ÓÉʵÑé¼×¿ÉÖª£¬ËáºÍ¼îÇ¡ºÃ·´Ó¦£¬·´Ó¦ºóÉú³ÉpH£½9µÄNaAÈÜÒº£¬ËµÃ÷A-Àë×ÓË®½âʹÈÜÒºÏÔ¼îÐÔ£¬¹ÊHAΪÈõËá¡£
A¡¢ÈÜÒºÖÐÒ»¶¨´æÔÚc£¨OH-£©+c£¨A-£©=c£¨Na+£©+c£¨H+£©£¬»ìºÏÈÜÒºpH=7˵Ã÷ÈÜÒº³ÊÖÐÐÔ£¬c£¨OH-£©=c£¨H+£©£¬ËùÒÔc£¨A-£©=c£¨Na+£©£¬·´Ó¦ºóÉú³ÉNaAÈÜÒº£¬A-Àë×ÓË®½âʹÈÜÒºÏÔ¼îÐÔ£¬¹ÊHA¹ýÁ¿²ÅÄÜʹÈÜÒºÏÔÖÐÐÔ£¬Òò´Ë£¬ÔÈÜҺŨ¶Èc1£¾0.2 molL-1£¬AÕýÈ·£»
B¡¢HAÊÇÈõËá´æÔÚµçÀëƽºâ£¬HAµÄµçÀë·½³ÌʽÊÇHAH++A-£¬BÕýÈ·£»
C¡¢·´Ó¦ºóÉú³ÉNaAÈÜÒº£¬A-Àë×ÓË®½âÏÔ¼îÐÔ£¬ÈÜÒºÖÐÀë×ÓŨ¶È´óСc£¨Na+£©£¾c£¨A-£©£¾c£¨OH-£©£¾c£¨H+£©£¬C´íÎó£»
D¡¢ÒÒÈÜÒºÖÐÒ»¶¨´æÔÚc£¨OH-£©+c£¨A-£©=c£¨Na+£©+c£¨H+£©£¬»ìºÏÈÜÒºpH=7˵Ã÷ÈÜÒº³ÊÖÐÐÔ£¬c£¨OH-£©=c£¨H+£©£¬ËùÒÔc£¨A-£©=c£¨Na+£©£¬c£¨Na+£©£¼c£¨HA£©+c£¨A-£©£¬DÕýÈ·¡£
¹ÊÑ¡C¡£
![](http://thumb2018.1010pic.com/images/loading.gif)
¡¾ÌâÄ¿¡¿ÓûîÐÔÌ¿»¹Ô´¦ÀíµªÑõ»¯ÎÓйط´Ó¦ÎªC(s)+2NO(g) N2(g)+CO2(g)¡£
£¨1£©Ð´³öÉÏÊö·´Ó¦µÄƽºâ³£Êý±í´ïʽ_______________¡£
£¨2£©ÔÚ2LºãÈÝÃܱÕÆ÷ÖмÓÈë×ãÁ¿CÓëNO·¢Éú·´Ó¦£¬ËùµÃÊý¾ÝÈç±í£¬»Ø´ðÏÂÁÐÎÊÌâ¡£
ʵÑé±àºÅ | ζÈ/¡æ | ÆðʼʱNOµÄÎïÖʵÄÁ¿/mol | ƽºâʱN2µÄÎïÖʵÄÁ¿/mol |
1 | 700 | 0.40 | 0.09 |
2 | 800 | 0.24 | 0.08 |
¢Ù½áºÏ±íÖÐÊý¾Ý£¬Åжϸ÷´Ó¦µÄ¡÷H____0(Ìî¡°£¾¡±»ò¡°£¼¡±)£¬ÀíÓÉÊÇ_________¡£
¢ÚÅжϸ÷´Ó¦´ïµ½Æ½ºâµÄÒÀ¾ÝÊÇ_______¡£
A.ÈÝÆ÷ÄÚÆøÌåÃܶȺ㶨 B.ÈÝÆ÷ÄÚ¸÷ÆøÌåŨ¶Èºã¶¨
C.ÈÝÆ÷ÄÚѹǿºã¶¨ D.2vÕý£¨NO£©= vÄ棨N2£©
£¨3£©700¡æʱ£¬ÈôÏò2LÌå»ýºã¶¨µÄÃܱÕÈÝÆ÷ÖгäÈëÒ»¶¨Á¿N2ºÍCO2·¢Éú·´Ó¦£ºN2(g)+CO2(g)C(s)+2NO(g) £»ÆäÖÐN2¡¢NOÎïÖʵÄÁ¿Ëæʱ¼ä±ä»¯µÄÇúÏßÈçÏÂͼËùʾ¡£Çë»Ø´ðÏÂÁÐÎÊÌâ¡£
¢Ù0¡«10 minÄÚµÄCO2ƽ¾ù·´Ó¦ËÙÂÊv£½____________¡£
¢ÚͼÖÐAµãv(Õý)___v(Äæ)£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°£½¡±£©¡£
¢ÛµÚ10 minʱ£¬Íâ½ç¸Ä±äµÄÌõ¼þ¿ÉÄÜÊÇ_____________¡£
A£®¼Ó´ß»¯¼Á B£®Ôö´óCµÄÎïÖʵÄÁ¿
C£®¼õСCO2µÄÎïÖʵÄÁ¿ D£®ÉýΠE£®½µÎÂ