ÌâÄ¿ÄÚÈÝ
16£®Ïò20mLÇâÑõ»¯ÄÆÈÜÒºÖÐÖðµÎ¼ÓÈë0.2mol/L´×ËáÈÜÒº£¬µÎ¶¨ÇúÏßÈçͼËùʾÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©A£® | ¸ÃÇâÑõ»¯ÄÆÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈΪ0.1 mol/L | |
B£® | ÔÚbµã£¬c£¨Na+£©=c£¨CH3COO-£© | |
C£® | ÔÚdµã£¬ÈÜÒºÖÐËùÓÐÀë×ÓŨ¶ÈÓÉ´óµ½Ð¡µÄ˳ÐòΪc£¨CH3COO-£©£¾c£¨Na+£©£¾c£¨H+£©£¾c£¨OH-£© | |
D£® | ÇâÑõ»¯ÄÆÈÜÒºÓë´×ËáÈÜҺǡºÃÍêÈ«·´Ó¦µÄµãλÓÚÇúÏßb¡¢d¼äµÄijµã |
·ÖÎö A£®ÓɼîÈÜÒºµÄpH¼ÆËãÇâÑõ»¯ÄÆÈÜҺŨ¶È£»
B£®bµãʱÈÜÒº³ÊÖÐÐÔ£¬¸ù¾ÝµçºÉÊغã·ÖÎö£»
C£®dµãʱ£¬¸ù¾ÝÈÜÒºµÄËá¼îÐÔ¼°µçºÉÊغã·ÖÎö£»
D£®µ±ÇâÑõ»¯Äƺʹ×ËáÇ¡ºÃ·´Ó¦Ê±¶þÕßµÄÎïÖʵÄÁ¿ÏàµÈ£®
½â´ð ½â£ºA£®µ±Î´¼Ó´×Ëáʱ£¬ÇâÑõ»¯ÄÆÈÜÒºµÄpH=13£¬ÔòÇâÑõ»¯ÄÆÈÜÒºÖÐÇâÑõ¸ùÀë×ÓŨ¶ÈÊÇ0.1mol/L£¬ÇâÑõ»¯ÄÆÊÇÇ¿µç½âÖÊ£¬ËùÒÔÇâÑõ»¯ÄÆÈÜҺŨ¶ÈÊÇ0.1mol/L£¬¹ÊAÕýÈ·£»
B£®bµãʱÈÜÒº³ÊÖÐÐÔ£¬Ôòc £¨H+£©=c £¨OH-£©£¬¸ù¾ÝµçºÉÊغãµÃc £¨Na+£©=c£¨CH3COO-£©£¬¹ÊBÕýÈ·£»
C£®dµãʱ£¬ÈÜÒº³ÊËáÐÔ£¬Ôòc £¨H+£©£¾c £¨OH-£©£¬¸ù¾ÝµçºÉÊغãµÃc £¨CH3COO£©£¾c £¨Na+£©£¬¸ÃµãÈÜÒºÖеÄÈÜÖÊÊÇ´×ËáÄƺʹ×ËᣬÆäÎïÖʵÄÁ¿ÏàµÈ£¬´×ËáÊÇÈõµç½âÖÊ£¬´×ËáÄÆÊÇÇ¿µç½âÖÊ£¬ËùÒÔc £¨Na+£©£¾c £¨H+£©£¬ÔòÀë×ÓŨ¶È´óС˳ÐòÊÇc £¨CH3COO£©£¾c £¨Na+£©£¾c £¨H+£©£¾c £¨OH-£©£¬¹ÊCÕýÈ·£»
D£®µ±ÇâÑõ»¯Äƺʹ×ËáÇ¡ºÃ·´Ó¦Ê±¶þÕßµÄÎïÖʵÄÁ¿ÏàµÈ£¬´×ËáµÄÎïÖʵÄÁ¿Å¨¶ÈÊÇ0.2mol/L£¬ÇâÑõ»¯ÄÆÈÜÒºµÄŨ¶ÈÊÇ0.1mol/L£¬ÒªÊ¹¶þÕßµÄÎïÖʵÄÁ¿ÏàµÈ£¬ÔòÇâÑõ»¯ÄƵÄÌå»ýÓ¦¸ÃÊÇ´×ËáµÄ2±¶£¬´×ËáΪ10mL£¬µ±ÈÜÒº³ÊÖÐÐÔʱ£¬ËáÉÔ΢¹ýÁ¿£¬ËùÒÔÇâÑõ»¯ÄÆÈÜÒºÓë´×ËáÈÜҺǡºÃÍêÈ«·´Ó¦µÄµãλÓÚ0-bÖ®¼ä£¬¹ÊD´íÎó£»
¹ÊÑ¡£ºD£®
µãÆÀ ±¾Ì⿼²éÁËËá¼î»ìºÏÈÜÒº¶¨ÐÔÅжϣ¬¸ù¾ÝÈõµç½âÖʵĵçÀëÌص㡢ÈÜÒºÖеÄÈÜÖʼ°µçºÉÊغãÀ´·ÖÎö½â´ð¼´¿É£¬ÄѶÈÖеȣ®
A£® | µ¥Î»Ê±¼äÄÚÉú³ÉnmolA2£¬Í¬Ê±ÏûºÄ2n molAB | |
B£® | ÈÝÆ÷ÄÚѹǿ²»Ëæʱ¼ä¶ø±ä»¯ | |
C£® | ABµÄÏûºÄËÙÂʵÈÓÚA2µÄÏûºÄËÙÂÊ | |
D£® | ÈÝÆ÷Öи÷×é·ÖµÄÌå»ý·ÖÊý²»Ëæʱ¼ä±ä»¯ |
A£® | 2»ò4 | B£® | 3»ò4 | C£® | 2»ò3 | D£® | ÎÞ·¨È·¶¨ |
A£® | ¸ù¾ÝÔªËØ×é³É¿ÉÅжÏÊÇ»¯ºÏÎï | |
B£® | ÒòËüµçÀë»áÉú³ÉÄÆÀë×ÓÓÖ·ûºÏÑεÄ×é³É£¬¹Ê¿ÉÊôÓÚÄÆÑÎ | |
C£® | ÒòËüµçÀë»áÉú³ÉÁòËá¸ùÀë×ÓÓÖ·ûºÏÑεÄ×é³É£¬¹Ê¿ÉÊôÓÚÁòËáÑÎ | |
D£® | NaHSO4ÈÜÓÚË®¿ÉµçÀë³öÇâÀë×ӹʿÉÒÔ³ÆΪËá |
A£® | ±ËØÓе¥ÖÊ´æÔÚÓÚ×ÔÈ»½çÖÐ | |
B£® | ËæºËµçºÉÊýÔö¼Ó£¬µ¥ÖÊÈ۷еãÉý¸ß | |
C£® | ËæºËµçºÉÊýÔö¼Ó£¬µ¥ÖÊÑõ»¯ÐÔÔöÇ¿ | |
D£® | µ¥ÖÊÓëË®·´Ó¦£¬¾ù¿ÉÓÃͨʽX2+H2O¨THX+HXO±íʾ |
ζÈ/¡æ | 25 | t1 | t2 |
Kw/mol2•L-2 | 1¡Á10-14 | a | 1¡Á10-12 |
£¨1£©Èô25£¼t1£¼t2£¬Ôòa£¾1¡Á10-14£¨Ìî¡°£¼¡±¡¢¡°£¾¡±»ò¡°=¡±£©£»
£¨2£©ÔÚ25¡æÏ£¬0.05mol/LµÄBa£¨OH£©2ÈÜÒºµÄpH=13£»
£¨3£©ÔÚ25¡æÏ£¬pH=10µÄNaOHÈÜÒºÖУ¬Ë®µçÀë²úÉúµÄc£¨OH-£©Îª£º1¡Á10-10mol/L£»
£¨4£©ÔÚt2¡æÏ£¬½«pH=9µÄÇâÑõ»¯ÄÆÈÜÒºV1LÓëpH=4µÄÁòËáÈÜÒºV2L»ìºÏ£¨Éè»ìºÏºóÈÜÒºÌå»ýΪÔÁ½ÈÜÒºÌå»ýÖ®ºÍ£©ËùµÃÈÜÒºµÄpH=7£¬ÔòV1£ºV2=$\frac{1}{9}$£®
A£® | ±£³ÖÌå»ý²»±ä£¬Ôö¼ÓH2O£¨g£©µÄÎïÖʵÄÁ¿ | |
B£® | ½«ÈÝÆ÷µÄÌå»ýËõСһ°ë | |
C£® | ±£³ÖÌå»ý²»±ä£¬³äÈëN2ʹÌåϵѹǿÔö´ó | |
D£® | ±£³Öѹǿ²»±ä£¬³äÈëN2ʹÈÝÆ÷Ìå»ý±ä´ó |
A£® | Ôö´óѹǿ£¬»¯Ñ§Æ½ºâ²»Ò»¶¨·¢ÉúÒƶ¯ | |
B£® | ͨÈ뺤Æø£¬»¯Ñ§Æ½ºâ²»Ò»¶¨·¢ÉúÒƶ¯ | |
C£® | Ôö¼ÓYµÄÎïÖʵÄÁ¿£¬»¯Ñ§Æ½ºâÒ»¶¨·¢ÉúÒƶ¯ | |
D£® | ÆäËüÌõ¼þ²»±ä£¬Éý¸ßζȣ¬»¯Ñ§Æ½ºâÒ»¶¨·¢ÉúÒƶ¯ |