Question

19£®Ò»¶¨Î¶ÈÏ£¬²â¶¨Ä³ÈÜÒºÖÐÖ»º¬NH₄⁺¡¢Cl^-¡¢H⁺¡¢OH^-ËÄÖÖÀë×Ó£¬ÏÂÁÐ˵·¨Ò»¶¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

• A£® ÈÜÒºÖÐËÄÖÖÁ£×ÓÖ®¼äÂú×㣺c£¨Cl^-£©£¾c£¨H⁺£©£¾c£¨NH₄⁺£©£¾c£¨OH^-£©
• B£® ÈôÈÜÒºÖÐÁ£×Ó¼äÂú×㣺c£¨NH₄⁺£©£¾c£¨Cl^-£©£¾c£¨OH^-£©£¾c£¨H⁺£©£¬ÔòÈÜÒºÖÐÈÜÖÊΪ£ºNH₃•H₂OºÍNH₄Cl
• C£® ÈôÈÜÒºÖÐÁ£×Ó¼äÂú×㣺c£¨Cl^-£©£¾c£¨NH₄⁺£©£¾c£¨H⁺£©£¾c£¨OH^-£©£¬ÔòÈÜÒºÖÐÈÜÖÊÖ»ÓÐNH₄Cl
• D£® ÈôÈÜÒºÖÐc£¨NH₄⁺£©=c£¨Cl^-£©£¬Ôò¸ÃÈÜÒºpHµÈÓÚ7£®

Answer 1

·ÖÎö A£®ÈôΪÂÈ»¯ï§ÈÜÒº£¬Ôòc£¨Cl^-£©£¾c£¨NH₄⁺£©£»
B£®ÂÈ»¯ï§ÈÜÒº³ÊËáÐÔ£¬Èôc£¨OH^-£©£¾c£¨H⁺£©£¬ÈÜÒº³Ê¼îÐÔ£¬ÔòÈÜÖÊΪ°±Ë®ºÍÂÈ»¯ï§£»
C£®¸ÃÈÜÖÊ¿ÉÒÔΪÉÙÁ¿µÄHClºÍÂÈ»¯ï§£»
D£®Èôc£¨NH₄⁺£©=c£¨Cl^-£©£¬¸ù¾ÝµçºÉÊغãµÃc£¨OH^-£©=c£¨H⁺£©£¬½áºÏζÈÓ°ÏìË®µÄÀë×Ó»ýÅжϣ®

½â´ð ½â£ºA£®ÈôÈÜÖÊΪÂÈ»¯ï§Ê±£¬ÈÜÒºÖÐÂú×ãc£¨Cl^-£©£¾c£¨NH₄⁺£©£¾c£¨H⁺£©£¾c£¨OH^-£©£¬¹ÊA´íÎó£»
B£®ÈôÈÜÒºÖÐÁ£×Ó¼äÂú×㣺c£¨NH₄⁺£©£¾c£¨Cl^-£©£¾c£¨OH^-£©£¾c£¨H⁺£©£¬ÈÜÒº³Ê¼îÐÔ£¬ÓÉÓÚÂÈ»¯ï§ÈÜÒº³ÊËáÐÔ£¬ÈôÈÜÒºÏÔʾ¼îÐÔ£¬Ôò¼ÓÈëµÄ°±Ë®Ó¦¸Ã¹ýÁ¿£¬ËùÒÔÈÜÒºÖÐÈÜÖÊΪNH₃•H₂OºÍNH₄Cl£¬¹ÊBÕýÈ·£»
C£®ÈôÈÜÒºÖÐÁ£×Ó¼äÂú×㣺c£¨Cl^-£©£¾c£¨NH₄⁺£©£¾c£¨H⁺£©£¾c£¨OH^-£©£¬ÈÜÒº³ÊËáÐÔ£¬¸ÃÈÜÒºµÄÈÜÖÊ¿ÉÒÔΪNH₄Cl£¬Ò²¿ÉÒÔΪNH₄Cl¡¢HCl£¬¹ÊC´íÎó£»
D£®Èôc£¨NH₄⁺£©=c£¨Cl^-£©£¬¸ù¾ÝµçºÉÊغãµÃc£¨OH^-£©=c£¨H⁺£©£¬ÓÉÓÚζȲ»È·¶¨£¬ÔòÈÜÒºµÄpH²»Ò»¶¨Îª7£¬¹ÊD´íÎó£»
¹ÊÑ¡B£®

µãÆÀ ±¾Ì⿼²éÀë×ÓŨ¶È´óС±È½Ï£¬ÌâÄ¿ÄѶÈÖеȣ¬Ã÷È·ÑεÄË®½âÔ­Àí¡¢µçºÉÊغ㺬ÒåΪ½â´ð¹Ø¼ü£¬DΪÒ×´íµã£¬×¢Òâ²»Êdz£ÎÂÏ£¬ÈÜÒº³ÊÖÐÐÔʱµÄpH¡Ù7£¬ÊÔÌâÅàÑøÁËѧÉúµÄ·ÖÎöÄÜÁ¦¼°Áé»îÓ¦ÓÃÄÜÁ¦£®