ÌâÄ¿ÄÚÈÝ
(10·Ö)
¢ñ¡¢AÎïÖʵĻ¯Ñ§Ê½ÎªM(OH)2£¬½«ÆäÈÜÓÚË®ÖƳÉÏ¡ÈÜÒº£¬¸ÃÈÜÒº³ÊÖÐÐÔ£¬ÔÚÈÜÒºÖдæÔÚ£º
M2+ + 2OH- M(OH)2 2H+ + MO22-
»Ø´ðÒÔÏÂÌâÄ¿Ò»ÂÉÓá°Ôö´ó¡±¡°¼õС¡±¡°²»±ä¡±Ìî¿Õ
£¨1£©ÔÚÆäËûÌõ¼þ²»±äµÄÇé¿öÏ£¬25Coʱ£¬ÔÚÕôÁóË®ÖмÓÈëAÎïÖʺó£¬Óë¼ÓÈëÇ°±È½Ï£¬
¢ÙÓÉË®µçÀë³öµÄC(OH-) £¬C(H+) £¬Ë®µÄµçÀë¶È £¬Kw
£¨2£©£¨4·Ö£©25Coʱ£¬ÏòAµÄÏ¡ÈÜÒºÖмÓÈëÉÙÁ¿µÄÉÕ¼î¹ÌÌå¡£
ÔòË®µÄµçÀë¶È £¬ÈÜÒºµÄpH
¢ò¡¢.(2·Ö)ÊÒÎÂÏ£¬¼×¡¢ÒÒÁ½Æ¿°±Ë®µÄŨ¶È·Ö±ðΪ1mol/LºÍ0.1mol/L,Ôò¼×¡¢ÒÒÁ½Æ¿°±Ë®ÖÐC(OH-)Ö®±ÈΪ 10 (Ìî´óÓÚ¡¢µÈÓÚ»òСÓÚ)
¢ñ¡¢AÎïÖʵĻ¯Ñ§Ê½ÎªM(OH)2£¬½«ÆäÈÜÓÚË®ÖƳÉÏ¡ÈÜÒº£¬¸ÃÈÜÒº³ÊÖÐÐÔ£¬ÔÚÈÜÒºÖдæÔÚ£º
M2+ + 2OH- M(OH)2 2H+ + MO22-
»Ø´ðÒÔÏÂÌâÄ¿Ò»ÂÉÓá°Ôö´ó¡±¡°¼õС¡±¡°²»±ä¡±Ìî¿Õ
£¨1£©ÔÚÆäËûÌõ¼þ²»±äµÄÇé¿öÏ£¬25Coʱ£¬ÔÚÕôÁóË®ÖмÓÈëAÎïÖʺó£¬Óë¼ÓÈëÇ°±È½Ï£¬
¢ÙÓÉË®µçÀë³öµÄC(OH-) £¬C(H+) £¬Ë®µÄµçÀë¶È £¬Kw
£¨2£©£¨4·Ö£©25Coʱ£¬ÏòAµÄÏ¡ÈÜÒºÖмÓÈëÉÙÁ¿µÄÉÕ¼î¹ÌÌå¡£
ÔòË®µÄµçÀë¶È £¬ÈÜÒºµÄpH
¢ò¡¢.(2·Ö)ÊÒÎÂÏ£¬¼×¡¢ÒÒÁ½Æ¿°±Ë®µÄŨ¶È·Ö±ðΪ1mol/LºÍ0.1mol/L,Ôò¼×¡¢ÒÒÁ½Æ¿°±Ë®ÖÐC(OH-)Ö®±ÈΪ 10 (Ìî´óÓÚ¡¢µÈÓÚ»òСÓÚ)
(10·Ö)
¢ñ¡¢(1)
¢ÙC(OH-)±ä´ó £¬C(H+)±ä´ó±ä£¬Ë®µÄµçÀë¶È±äС £¬Kw ²»±ä
£¨2£©
ÔòË®µÄµçÀë¶È ²»±ä £¬ÈÜÒºµÄpH²»±ä
¢ò¡¢.(2·Ö)C(OH-)Ö®±ÈΪ µÈÓÚ 10 (Ìî´óÓÚ¡¢µÈÓÚ»òСÓÚ)
¢ñ¡¢(1)
¢ÙC(OH-)±ä´ó £¬C(H+)±ä´ó±ä£¬Ë®µÄµçÀë¶È±äС £¬Kw ²»±ä
£¨2£©
ÔòË®µÄµçÀë¶È ²»±ä £¬ÈÜÒºµÄpH²»±ä
¢ò¡¢.(2·Ö)C(OH-)Ö®±ÈΪ µÈÓÚ 10 (Ìî´óÓÚ¡¢µÈÓÚ»òСÓÚ)
ÂÔ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿