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A. ³£ÎÂʱ£¬0.1mol¡¤L-1µÄÏÂÁÐÈÜÒº¢ÙNH4Al(SO4)2 ¢ÚNH4Cl ¢ÛNH3¡¤H2O ¢ÜCH3COONH4 ÖУ¬c (NH4+)ÓÉ´óµ½Ð¡µÄ˳ÐòÊÇ£º¢Ù>¢Ú>¢Û>¢Ü
B. 0.1mol¡¤L-1 NaHCO3ÈÜÒºÖУ¬c(Na+)= 2c(CO32-)+ c(HCO3-)+c(H2CO3)
C. ³£ÎÂʱ£¬pH=2µÄCH3COOHÈÜÒººÍHClÈÜÒº¡¢pH=12µÄ°±Ë®ºÍNaOHÈÜÒº£¬ËÄÖÖÈÜÒºÖÐÓÉË®µçÀëµÄc(H+)²»ÏàµÈ
D. ³£ÎÂʱ£¬0.3 mol¡¤L-1HYÈÜÒºÓë0.3 mol¡¤L-1NaOHÈÜÒºµÈÌå»ý»ìºÏºó£¬ÈÜÒºµÄpH=9£¬Ôò»ìºÏÈÜÒºÖÐc(H+) +c(HY)= 1¡Á10-5 mol¡¤L-1
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ÓÉ1ʽ- 2ʽµÃ£ºc() - c() = c()ÒòΪpH= 9, c() = 10-9mol/LËùÒÔc(H+) +c(HY)= 1¡Á10-5 mol¡¤L-1£¬¹ÊDÕýÈ·¡£´ð°¸£ºD¡£
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Ñ¡Ïî | ÆøÌåX | ÈÜÒº¢Ù | ÈÜÒº¢Ú |
A | SO2 | Ca(OH)2 | BaCl2 |
B | Cl2 | AgNO3 | Na2S |
C | NH3 | AgNO3 | AlCl3 |
D | HCl | Na2SiO3 | NaAlO2 |
A. A B. B C. C D. D