Question

£¨2011?¶«³ÇÇøÄ£Ä⣩ʵÑé²âµÃ³£ÎÂÏÂ0.1mol/LijһԪËᣨHA£©ÈÜÒºµÄpH²»µÈÓÚl£¬0.1mol/LijһԪ¼î£¨BOH£©ÈÜÒºÀc£¨H⁺£©/c£¨OH^-£©=10^-12£®½«ÕâÁ½ÖÖÈÜÒºµÈÌå»ý»ìºÏºó£¬ËùµÃÈÜÒºÀï¸÷Àë×ÓµÄÎïÖʵÄÁ¿Å¨¶ÈµÄ¹ØϵÕýÈ·µÄÊÇ£¨¡¡¡¡£©

A£®c£¨B⁺£©£¾c£¨A^-£©£¾c£¨OH^-£©£¾c£¨H⁺£©

B£®c£¨A^-£©£¾c£¨B⁺£©£¾c£¨H⁺£©£¾c£¨OH^-£©

C£®c£¨H⁺£©£¾c£¨A^-£©£¾c£¨OH^-£©£¾c£¨B⁺£©

D£®c£¨B⁺£©£¾c£¨A^-£©£¾c£¨H⁺£©£¾c£¨OH^-£©

Answer 1

·ÖÎö£º³£ÎÂÏÂ0.1mol/LijһԪËᣨHA£©ÈÜÒºµÄpH²»µÈÓÚl£¬ËµÃ÷HAûÓÐÍêÈ«µçÀ룬ΪÈõËᣬ0.1mol/LijһԪ¼î£¨BOH£©ÈÜÒºÀï

c(H+)

c(OH-)

=10^-12£¬½áºÏc£¨H⁺£©¡Ác£¨OH^-£©=10^-14£¬¿ÉÖªc£¨OH^-£©=0.1mol/L£¬ÔòBOHΪǿ¼î£¬¶þÕß·´Ó¦Éú³ÉÇ¿¼îÈõËáÑΣ¬ÈÜÒº³Ê¼îÐÔ£¬ÒԴ˽â´ð¸ÃÌ⣮

½â´ð£º½â£º³£ÎÂÏÂ0.1mol/LijһԪËᣨHA£©ÈÜÒºµÄpH²»µÈÓÚl£¬ËµÃ÷HAûÓÐÍêÈ«µçÀ룬ΪÈõËᣬ0.1mol/LijһԪ¼î£¨BOH£©ÈÜÒºÀï

c(H+)

c(OH-)

=10^-12£¬½áºÏc£¨H⁺£©¡Ác£¨OH^-£©=10^-14£¬¿ÉÖªc£¨OH^-£©=0.1mol/L£¬ÔòBOHΪǿ¼î£¬¶þÕß·´Ó¦Éú³ÉÇ¿¼îÈõËáÑΣ¬ÈÜÒº³Ê¼îÐÔ£¬Ôòc£¨OH^-£©£¾c£¨H⁺£©£¬ÓÉÓÚA^-·¢ÉúË®½âÉú³ÉHA£¬Ôòc£¨B⁺£©£¾c£¨A^-£©£¬ÑεÄË®½â³Ì¶ÈÒ»°ã½ÏÈõ£¬Ó¦ÓÐc£¨A^-£©£¾c£¨OH^-£©£¬Ôòc£¨B⁺£©£¾c£¨A^-£©£¾c£¨OH^-£©£¾c£¨H⁺£©£¬
¹ÊÑ¡A£®

µãÆÀ£º±¾Ì⿼²éÀë×ÓŨ¶ÈµÄ´óС±È½Ï£¬ÌâÄ¿ÄѶÈÖеȣ¬½â´ð¸ÃÌâµÄ¹Ø¼üÊǸù¾ÝÈÜÒºµÄpHºÍÈÜÒºÖÐÇâÀë×ÓÓëÇâÑõ¸ùÀë×ÓÅжϵç½âÖʵÄÇ¿Èõ£¬½áºÏÑÎÀàË®½âµÄÔ­Àí¿É½â´ð¸ÃÌ⣮