ÌâÄ¿ÄÚÈÝ
ÏÂÁÐÈÜÒºÖУ¬Î¢Á£Å¨¶È¹ØϵÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®º¬ÓÐNH4+¡¢Cl-¡¢H+¡¢OH-Àë×ÓµÄÈÜÒºÖУ¬ÆäÀë×ÓŨ¶ÈÒ»¶¨ÊÇ£ºc£¨Cl-£©£¾c£¨NH4+£©£¾c£¨H+£©£¾c£¨OH-£© |
B£®pH=8µÄ°±Ë®ÓëÂÈ»¯ï§µÄ»ìºÏÈÜÒºÖУºc£¨Cl-£©£¾c£¨NH4+£© |
C£®0.1mol/LµÄNa2SÈÜÒºÖУºc£¨OH-£©=c£¨H+£©+c£¨HS-£©+2c£¨H2S£© |
D£®pH=3µÄÒ»ÔªËáºÍpH=11µÄһԪǿ¼îµÈÌå»ý»ìºÏºóµÄÈÜÒºÖУºc£¨OH-£©=c£¨H+£© |
A£®º¬ÓÐNH4+¡¢Cl-¡¢H+¡¢OH-Àë×ÓµÄÈÜÒºÖУ¬¿ÉÄÜΪһˮºÏ°±ºÍÂÈ»¯ï§µÄ»ìºÏÈÜÒº£¬Ôò¿ÉÄÜ´æÔÚc£¨NH4+£©£¾c£¨Cl-£©£¾c£¨OH-£©£¾c£¨H+£©£¬¹ÊA´íÎó£»
B£®pH=8µÄ°±Ë®ÓëÂÈ»¯ï§µÄ»ìºÏÈÜÒº£¬ÏÔ¼îÐÔ£¬ÓɵçºÉÊغãc£¨NH4+£©+c£¨H+£©=c£¨Cl-£©+c£¨OH-£©¿ÉÖª£¬c£¨Cl-£©£¼c£¨NH4+£©£¬¹ÊB´íÎó£»
C£®ÓÉÖÊ×ÓÊغã¿ÉÖª£¬c£¨OH-£©=c£¨H+£©+c£¨HS-£©+2c£¨H2S£©£¬¹ÊCÕýÈ·£»
D£®Ò»ÔªËᣬΪǿËá»òÈõËᣬÔòpH=3µÄÒ»ÔªËáºÍpH=11µÄһԪǿ¼îµÈÌå»ý»ìºÏºóµÄÈÜÒºÖУºc£¨OH-£©¡Üc£¨H+£©£¬¹ÊD´íÎó£»
¹ÊÑ¡C£®
B£®pH=8µÄ°±Ë®ÓëÂÈ»¯ï§µÄ»ìºÏÈÜÒº£¬ÏÔ¼îÐÔ£¬ÓɵçºÉÊغãc£¨NH4+£©+c£¨H+£©=c£¨Cl-£©+c£¨OH-£©¿ÉÖª£¬c£¨Cl-£©£¼c£¨NH4+£©£¬¹ÊB´íÎó£»
C£®ÓÉÖÊ×ÓÊغã¿ÉÖª£¬c£¨OH-£©=c£¨H+£©+c£¨HS-£©+2c£¨H2S£©£¬¹ÊCÕýÈ·£»
D£®Ò»ÔªËᣬΪǿËá»òÈõËᣬÔòpH=3µÄÒ»ÔªËáºÍpH=11µÄһԪǿ¼îµÈÌå»ý»ìºÏºóµÄÈÜÒºÖУºc£¨OH-£©¡Üc£¨H+£©£¬¹ÊD´íÎó£»
¹ÊÑ¡C£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿