Question

9£®ÏÂÁÐÈÜÒºÖÐÀë×ÓŨ¶È¹ØϵµÄ±íʾÕýÈ·µÄÊÇ£¨¡¡¡¡£©

• A£® NaHCO₃ÈÜÒºÖУºc£¨H⁺£©+c£¨Na⁺£©¨Tc£¨OH^-£©+c£¨CO₃^2-£©+c£¨HCO₃^-£©
• B£® pH=3µÄCH₃COOHÈÜÒºÓëpH=11µÄNaOHÈÜÒºµÈÌå»ý»ìºÏºóµÄÈÜÒºÖУºc£¨OH^-£©£¾c£¨H⁺£©
• C£® 0.1mol/LµÄNH₄ClÈÜÒºÖУºc£¨Cl^-£©£¾c£¨H⁺£©£¾c£¨NH₄⁺£©£¾c£¨OH^-£©
• D£® ÎïÖʵÄÁ¿Å¨¶ÈÏàµÈµÄCH₃COOHºÍCH₃COONaÈÜÒºµÈÌå»ý»ìºÏºóµÄÈÜÒºÖУº2c£¨Na⁺£©¨Tc£¨CH₃COOH£©+c£¨CH₃COO^-£©

Answer 1

·ÖÎö A£®¸ù¾Ý̼ËáÇâÄÆÈÜÒºÖеĵçºÉÊغãÅжϣ»
B£®´×ËáΪÈõËᣬ»ìºÏÒºÖд×Ëá¹ýÁ¿£¬ÈÜÒº³ÊËáÐÔ£¬Ôòc£¨OH^-£©£¼c£¨H⁺£©£»
C£®ï§¸ùÀë×ÓµÄË®½â³Ì¶È½ÏС£¬Ôòc£¨NH₄⁺£©£¾c£¨H⁺£©£»
D£®¸ù¾Ý»ìºÏÒºÖеÄÎïÁÏÊغãÅжϣ®

½â´ð ½â£ºA£®NaHCO₃ÈÜÒºÖУ¬¸ù¾ÝµçºÉÊغã¿ÉÖª£º£ºc£¨H⁺£©+c£¨Na⁺£©¨Tc£¨OH^-£©+2c£¨CO₃^2-£©+c£¨HCO₃^-£©£¬¹ÊA´íÎó£»
B£®pH=3µÄCH₃COOHÈÜÒºÓëpH=11µÄNaOHÈÜÒºµÈÌå»ý»ìºÏ£¬ÓÉÓÚ´×ËáΪÈõËᣬÔò´×Ëá¹ýÁ¿£¬ÈÜÒºÏÔʾËáÐÔ£ºc£¨OH^-£©£¼c£¨H⁺£©£¬¹ÊB´íÎó£»
C£®0.1mol/LµÄNH₄ClÈÜÒºÖУ¬ï§¸ùÀë×ÓË®½â£¬ÈÜÒº³ÊËáÐÔ£¬ÓÉÓÚË®½â³Ì¶È½ÏС£¬Ôòc£¨NH₄⁺£©£¾c£¨H⁺£©£¬ÕýÈ·µÄÀë×ÓŨ¶È´óСΪ£ºc£¨Cl^-£©£¾c£¨NH₄⁺£©£¾c£¨H⁺£©£¾c£¨OH^-£©£¬¹ÊC´íÎó£»
D£®ÎïÖʵÄÁ¿Å¨¶ÈÏàµÈµÄCH₃COOHºÍCH₃COONaÈÜÒºµÈÌå»ý»ìºÏ£¬¸ù¾ÝÎïÁÏÊغã¿ÉµÃ£º2c£¨Na⁺£©¨Tc£¨CH₃COOH£©+c£¨CH₃COO^-£©£¬¹ÊDÕýÈ·£»
¹ÊÑ¡D£®

µãÆÀ ±¾Ì⿼²éÁËÀë×ÓŨ¶È´óС±È½Ï£¬ÌâÄ¿ÄѶÈÖеȣ¬Ã÷È·ÑεÄË®½âÔ­Àí¼°ÆäÓ°ÏìΪ½â´ð¹Ø¼ü£¬×¢ÒâÕÆÎÕµçºÉÊغ㡢ÎïÁÏÊغãµÄº¬Òå¼°Ó¦Ó÷½·¨£¬ÊÔÌâÅàÑøÁËѧÉúµÄ·ÖÎöÄÜÁ¦¼°Áé»îÓ¦ÓÃÄÜÁ¦£®