ÌâÄ¿ÄÚÈÝ

7£®³£ÎÂÏ£¬Ïò20.00mL 0.1000mol•L-1 £¨NH4£©2SO4ÈÜÒºÖÐÖðµÎ¼ÓÈë0.2000mol•L-1NaOHʱ£¬ÈÜÒºµÄpHÓëËù¼ÓNaOHÈÜÒºÌå»ýµÄ¹ØÏµÈçͼËùʾ£¨²»¿¼Âǻӷ¢£©£®ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
A£®µãaËùʾÈÜÒºÖУºc£¨NH4+£©£¾c£¨SO42-£©£¾c£¨H+£©£¾c£¨OH-£©
B£®µãbËùʾÈÜÒºÖУºc£¨NH4+£©=c£¨Na+£©£¾c£¨H+£©=c£¨OH-£©
C£®µãcËùʾÈÜÒºÖУºc£¨SO42-£©+c£¨H+£©=c£¨NH3•H2O £©+c£¨OH-£©
D£®µãdËùʾÈÜÒºÖУºc£¨NH3•H2O £©£¾c£¨SO42-£©£¾c£¨OH-£©£¾c£¨NH4+£©

·ÖÎö A£®aµãÈÜÒºÖУ¬ï§¸ùÀë×ÓË®½âµ¼ÖÂÈÜÒº³ÊËáÐÔ£¬µ«ï§¸ùÀë×ÓË®½â½Ï΢Èõ£»
B£®bµãÈÜÒºÖУ¬ÈÜÒº³ÊÖÐÐÔ£¬Ôòc£¨H+£©=c£¨OH-£©£¬¸ù¾ÝÈÜÖʵÄÐÔÖÊÅжϣ»
C£®cµãÈÜÒºÖдæÔÚµçºÉÊØºãºÍÎïÁÏÊØºã£¬¸ù¾ÝµçºÉÊØºã¡¢ÎïÁÏÊØºãÅжϣ»
D£®dµãÈÜÒºÖУ¬¶þÕßÇ¡ºÃ·´Ó¦Éú³ÉÁòËáÄÆ¡¢Ò»Ë®ºÏ°±£¬ÇÒÁòËáÄÆÊǰ±Ë®Å¨¶ÈµÄÒ»°ë£®

½â´ð ½â£ºA£®aµãÈÜÒºÖУ¬ï§¸ùÀë×ÓË®½âµ¼ÖÂÈÜÒº³ÊËáÐÔ£¬¼´c£¨H+£©£¾c£¨OH-£©£¬ï§¸ùÀë×ÓË®½â³Ì¶È½ÏС£¬½áºÏÎïÁÏÊØºãÖªc£¨NH4+£©£¾c£¨SO42-£©£¬ËùÒÔÈÜÒºÖÐÀë×ÓŨ¶È´óС˳ÐòÊÇc£¨NH4+£©£¾c£¨SO42-£©£¾c£¨H+£©£¾c£¨OH-£©£¬¹ÊAÕýÈ·£»
B£®bµãÈÜÒºÖУ¬ÈÜÒº³ÊÖÐÐÔ£¬Ôòc£¨H+£©=c£¨OH-£©£¬¸ù¾ÝµçºÉÊØºãµÃc£¨H+£©+c£¨NH4+£©+c£¨Na+£©=2c£¨SO42-£©+c£¨OH-£©£¬ÁòËáï§µÄËáÐÔ½ÏÈõ£¬ÒªÊ¹»ìºÏÈÜÒº³ÊÖÐÐÔ£¬Ôò¼ÓÈëÉÙÁ¿ÇâÑõ»¯ÄƼ´¿É£¬ËùÒÔc£¨NH4+£©£¾c£¨Na+£©£¬¹ÊB´íÎó£»
C£®cµãÈÜÒºÖУ¬ÈÜÒº³Ê¼îÐÔ£¬ËùÒÔc£¨H+£©£¼c£¨OH-£©£¬ÈÜÒºÖеÄÈÜÖÊÊǵÈÎïÖʵÄÁ¿Å¨¶ÈµÄÁòËáï§¡¢ÁòËáÄÆ¡¢Ò»Ë®ºÏ°±£¬¸ù¾ÝµçºÉÊØºãµÃc£¨H+£©+c£¨NH4+£©+c£¨Na+£©=2c£¨SO42-£©+c£¨OH-£©£¬¸ù¾ÝÎïÁÏÊØºãµÃ£¬¸ù¾ÝÎïÁÏÊØºãµÃc£¨NH4+£©+c£¨NH3•H2O£©=2c£¨SO42-£©=2c£¨Na+£©£¬ËùÒÔµÃc£¨SO42-£©+c£¨H+£©=c£¨NH3•H2O £©+c£¨OH-£©£¬¹ÊCÕýÈ·£»
D£®dµãÈÜÒºÖУ¬¶þÕßÇ¡ºÃ·´Ó¦Éú³ÉÁòËáÄÆ¡¢Ò»Ë®ºÏ°±£¬ÇÒÁòËáÄÆÊǰ±Ë®Å¨¶ÈµÄÒ»°ë£¬Ò»Ë®ºÏ°±µçÀë³Ì¶È½ÏС£¬ËùÒÔc£¨NH3•H2O £©£¾c£¨SO42-£©£¬¹ÊDÕýÈ·£»
¹ÊÑ¡B£®

µãÆÀ ±¾Ì⿼²éÁËÀë×ÓŨ¶È´óСµÄ±È½Ï£¬Ã÷ȷͼÏóÖÐÇúÏ߱仯Ç÷ÊÆ¡¢ÇúÏßÉÏÿһ¸öµãµÄÈÜÖʼ°ÆäÐÔÖÊÊǽⱾÌâ¹Ø¼ü£¬ÔÙ½áºÏµçºÉÊØºã¡¢ÎïÁÏÊØºãÀ´·ÖÎö½â´ð£¬ÌâÄ¿ÄѶÈÖеȣ®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø