ijζÈ(t¡æ)ʱ£¬Ë®µÄÀë×Ó»ýΪK¦Ø£½1¡Á10£­13£¬Ôò¸ÃζÈ(Ñ¡Ìî´óÓÚ¡¢Ð¡ÓÚ»òµÈÓÚ)_______25¡æ£¬ÆäÀíÓÉÊÇ_______________________________¡£Èô½«´ËζÈÏÂpH£½11µÄ¿ÁÐÔÄÆÈÜÒºaLÓëpH£½1µÄÏ¡ÁòËábL»ìºÏ(Éè»ìºÏºóÈÜÒºÌå»ýµÄ΢С±ä»¯ºöÂÔ²»¼Æ)£¬ÊÔͨ¹ý¼ÆËãÌîдÒÔϲ»Í¬Çé¿öʱÁ½ÖÖÈÜÒºµÄÌå»ý±È£º

(1)ÈôËùµÃ»ìºÏҺΪÖÐÐÔ£¬Ôòa¡Ãb£½_____£»´ËÈÜÒºÖи÷ÖÖÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡ÅÅÁÐ˳ÐòÊÇ__________¡£

(2)ÈôËùµÃ»ìºÏÒºµÄpH£½2£¬Ôòa¡Ãb£½____________¡£´ËÈÜÒºÖи÷ÖÖÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡ÅÅÁÐ˳ÐòÊÇ_____________      _______¡£

´óÓÚ£»ÊÒÎÂʱK¦Ø£½1¡Á10£­14£¬Î¶ÈÔ½¸ßˮԽÒ×µçÀ룬K¦ØÔ½´ó¡££¨3·Ö£©

£¨1£©10:1 £¬ Na+  SO42£­ HOH£­ £»£¨Ã¿¿Õ2·Ö£©

£¨2£©9£º2 £¬HSO42£­  Na+   OH£­   £¨Ã¿¿Õ2·Ö£©

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijζȣ¨t¡æ£©Ê±£¬Ë®µÄÀë×Ó»ý³£ÊýKw=10-13£¬Ôò¸ÃζÈ
£¾
£¾
25¡æ£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°=¡±£©£¬ÀíÓÉÊÇ£º
ÒòΪˮµÄµçÀëÊÇÎüÈȵĹý³Ì£¬ÉýÎÂÓÐÀûÓÚË®µÄµçÀ룬´Ëζȣ¨t¡æ£©Ê±£¬Ë®µÄÀë×Ó»ý³£ÊýKw=10-13´óÓÚ10-14£¬ËµÃ÷´ËʱˮµÄµçÀë³Ì¶È¸ßÓÚ25¡æʱˮµÄµçÀë³Ì¶È£¬Ò²ËµÃ÷´ËʱµÄζȸßÓÚ25¡æ
ÒòΪˮµÄµçÀëÊÇÎüÈȵĹý³Ì£¬ÉýÎÂÓÐÀûÓÚË®µÄµçÀ룬´Ëζȣ¨t¡æ£©Ê±£¬Ë®µÄÀë×Ó»ý³£ÊýKw=10-13´óÓÚ10-14£¬ËµÃ÷´ËʱˮµÄµçÀë³Ì¶È¸ßÓÚ25¡æʱˮµÄµçÀë³Ì¶È£¬Ò²ËµÃ÷´ËʱµÄζȸßÓÚ25¡æ
£®
½«´ËζÈÏÂpH=11µÄNaOHÈÜÒºa LÓëpH=1µÄH2SO4ÈÜÒºb L»ìºÏ£®
£¨1£©ÈôËùµÃ»ìºÏҺΪÖÐÐÔ£¬Ôòa£ºb=
10£º1
10£º1
£»
£¨2£©ÈôËùµÃ»ìºÏÒºµÄpH=2£¬Ôòa£ºb=
9£º2
9£º2
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨1£©Ä³Î¶ȣ¨t¡æ£©Ê±£¬Ë®µÄÀë×Ó»ýΪKw=1¡Á10-13£¬ÔÚ´ËζÈÏ£¬Ä³ÈÜÒºÖÐÓÉË®µçÀë³öÀ´µÄH+Ũ¶ÈΪ1¡Á10-10mol/L£¬Ôò¸ÃÈÜÒºµÄpH¿ÉÄÜΪ
3
3
»ò
10
10
£®
£¨2£©ÈôζÈΪ25¡æʱ£¬Ìå»ýΪVa¡¢pH=aµÄH2SO4ÈÜÒºÓëÌå»ýΪVb¡¢pH=bµÄNaOHÈÜÒº»ìºÏ£¬Ç¡ºÃÖкͣ®ÒÑÖªVa£¾Vb£¬ÇÒa=0.5b£¬ÔòaµÄÈ¡Öµ·¶Î§
14
3
£¼a£¼7
14
3
£¼a£¼7
£®
£¨3£©Èô½«´Ëζȣ¨t¡æ£©Ï£¬pH=11µÄ¿ÁÐÔÄÆÈÜÒºm LÓëpH=1µÄÏ¡ÁòËáÈÜÒºnL»ìºÏ£¨¼ÙÉè»ìºÏºóÈÜÒºÌå»ýµÄ΢С±ä»¯ºöÂÔ²»¼Æ£©£¬ÊÔͨ¹ý¼ÆËãÌîдÒÔϲ»Í¬Çé¿öʱÁ½ÖÖÈÜÒºµÄÌå»ý±È£¬²¢±È½ÏÈÜÒºÖи÷Àë×ÓµÄŨ¶È´óС£®
¢ÙÈôËùµÃ»ìºÏҺΪÖÐÐÔ£¬Ôòm£ºn=
10£º1
10£º1
£»´ËÈÜÒºÖи÷ÖÖÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡ÅÅÁÐ˳ÐòÊÇ
c£¨Na+£©£¾c£¨SO4 2- £©£¾c£¨H+£©=c£¨OH-£©
c£¨Na+£©£¾c£¨SO4 2- £©£¾c£¨H+£©=c£¨OH-£©
£®
¢ÚÈôËùµÃ»ìºÏÒºµÄpH=2£¬Ôòm£ºn=
9£º2
9£º2
£»´ËÈÜÒºÖи÷ÖÖÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡ÅÅÁÐ˳ÐòÊÇ
c£¨H+£©£¾c£¨SO4 2- £©£¾c£¨Na+£©£¾c£¨OH-£©
c£¨H+£©£¾c£¨SO4 2- £©£¾c£¨Na+£©£¾c£¨OH-£©
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijζȣ¨t¡æ£©Ê±£¬Ë®µÄKw=10-13 mol2?L-2£¬½«´ËζÈÏÂpH=11µÄNaOHÈÜÒºaLÓëpH=1µÄH2SO4µÄÈÜÒºbL»ìºÏ£¬Ôò£ºÈôËùµÃ»ìºÏҺΪÖÐÐÔ£¬Ôòa£ºb=
10£º1
10£º1
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÀûÓÃÖÐѧËùѧµÄÏà¹Ø¹æÂÉ£¬ÏÂÁÐÍƶÏÕýÈ·µÄÒ»ÏîÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijζȣ¨t¡æ£©Ê±£¬Ë®µÄKW=10-13£¬Ôò
£¨1£©¸Ãζȣ¨Ìî´óÓÚ¡¢µÈÓÚ»òСÓÚ£©
 
25¡æ£®½«´ËζÈÏÂ0.01mol?L-1µÄNaOHÈÜÒºaLÓëpH=1µÄHClÈÜÒºbL»ìºÏ£¬
£¨2£©ÈôËùµÃ»ìºÏÈÜҺΪÖÐÐÔ£¬Ôòa£ºb=
 
£»
£¨3£©ÈôËùµÃ»ìºÏÈÜÒºpH=2£¬Ôòa£ºb=
 
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸