³£ÎÂÏ£¬ÏÂÁÐÓйØÈÜÒºµÄpH»ò΢Á£µÄÎïÖʵÄÁ¿Å¨¶È¹ØϵµÄÅжϲ»ÕýÈ·µÄÊÇ(¡¡¡¡)¡£
A£®pH£½3µÄ´×ËáÈÜÒºÓëpH£½11µÄNaOHÈÜÒºµÈÌå»ý»ìºÏ£¬ËùµÃÈÜÒºµÄpH<7
B£®pH£½3µÄ¶þÔªÈõËáH2RÈÜÒºÓëpH£½11µÄNaOHÈÜÒº»ìºÏºó£¬»ìºÏÈÜÒºµÄpH£½7£¬Ôò·´Ó¦ºóµÄ»ìºÏÈÜÒºÖУº2c(R2£­)£«c(HR£­)£½c(Na£«)
C£®½«0.2 mol¡¤L£­1µÄijһԪËáHAÈÜÒººÍ0.1 mol¡¤L£­1 NaOHÈÜÒºµÈÌå»ý»ìºÏºó£¬»ìºÏÈÜÒºµÄpH´óÓÚ7£¬Ôò·´Ó¦ºóµÄ»ìºÏÈÜÒºÖУº2c(OH£­)£½2c(H£«)£«c(HA)£­c(A£­)
D£®Ä³ÎïÖʵÄÈÜÒºÖÐÓÉË®µçÀë³öµÄc(H£«)£½1¡Á10£­a mol¡¤L£­1£¬Èôa>7£¬Ôò¸ÃÈÜÒºµÄpHÒ»¶¨Îª14£­a

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

Ìå»ýÏàͬ¡¢pHÖµÏàͬµÄHClÈÜÒººÍCH3COOHÈÜÒº£¬ÓëNaOHÈÜÒºÍêÈ«·´Ó¦Ê±Á½ÕßÏûºÄNaOHµÄÎïÖʵÄÁ¿

A£®ÖкÍHCIµÄ¶à B£®ÖкÍCH3COOHµÄ¶à C£®Ïàͬ D£®ÎÞ·¨±È½Ï

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

MOHÇ¿¼îÈÜÒººÍµÈÌå»ý¡¢µÈŨ¶ÈµÄHAÈõËá»ìºÏºó£¬ÈÜÒºÖÐÓйØÀë×ÓŨ¶ÈµÄ±È½ÏÕýÈ·µÄÊÇ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÏÂÁз½³ÌʽÖÐÊôÓÚË®½â·´Ó¦µÄÊÇ

A£®HCO3£­+H2O H3O++CO32£­
B£®HCO3£­+H2O OH£­+H2CO3
C£®NH3+H2O NH4++OH£­
D£®HCO3£­+OH£­ =CO32£­+H2O

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

Ë®ÊÇÒ»ÖÖÖØÒªµÄ×ÊÔ´£¬½ÚÔ¼ÓÃË®ÊÇ¡°È«Ãñ½ÚÔ¼£¬¹²Í¬Ðж¯¡±ÖØÒªµÄÒ»Ïî¡£¹ØÓÚË®µÄÏÂÁÐ˵·¨
ÕýÈ·µÄÊÇ

A£®Ë®¿ÉÒÔµçÀë³öÀë×Ó£¬ËùÒÔÊÇÇ¿µç½âÖÊ
B£®Ë®µÄÀë×Ó»ý¿É±íʾKW£½c(H£«)¡¤c(OH£­)
C£®³£ÎÂÏÂË®ÖеÄc(H£«)´óÓÚc(OH£­)
D£®Éý¸ßζȣ¬c(H£«)Ôö´ó£¬ÏÔÈõËáÐÔ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÏÂÁжÔÓÚ25¡æʱpHΪ12µÄ°±Ë®£¬ÐðÊöÕýÈ·µÄÊÇ£¨¡¡¡¡£©

A£®ÓÉË®µçÀë³öµÄc£¨OH£­£©£½1.0¡Á10£­2mol¡¤L£­1
B£®c£¨NH4+£©£«c£¨NH3¡¤H2O£©£½1.0¡Á10£­12mol¡¤L£­1
C£®ÓëµÈÌå»ý¡¢pH£½2µÄÑÎËá»ìºÏºóËùµÃµÄÈÜÒºÖУºc£¨NH4+£©£¾c£¨OH£­£©£¾c£¨Cl£­£©£¾c£¨H£«£©
D£®¼ÓÈëÒ»¶¨Á¿pH£½2µÄ´×ËáÈÜÒº»ìºÏºóËùµÃµÄÈÜÒºÖУºc£¨CH3COO£­£©£«c£¨OH£­£©£½c£¨NH4+£©£«c£¨H£«£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÏÂÁÐÓйصç½âÖÊÈÜÒºµÄ˵·¨ÕýÈ·µÄÊÇ  (¡¡¡¡)¡£

A£®ÔÚÕôÁóË®ÖеμÓŨH2SO4£¬KW²»±ä
B£®CaCO3ÄÑÈÜÓÚÏ¡ÁòËᣬҲÄÑÈÜÓÚ´×Ëá
C£®ÔÚNa2SÏ¡ÈÜÒºÖУ¬c(H£«)£½c(OH£­)£­2c(H2S)£­c(HS£­)
D£®NaClÈÜÒººÍCH3COONH4ÈÜÒº¾ùÏÔÖÐÐÔ£¬Á½ÈÜÒºÖÐË®µÄµçÀë³Ì¶ÈÏàͬ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

³£ÎÂÏ£¬pH=12µÄ°±Ë®ÖдæÔÚÒÔϵçÀëƽºâ:
NH3¡¤H2ONH4+ +OH-¡£ÍùÆäÖмÓÈëÉÙÁ¿0.01 mol¡¤L-1NaOHÈÜÒº£¬±£³Ö²»±äµÄÊÇ(   )

A£®c(NH4+)B£®c(OH-)C£®c(NH3¡¤H2O)D£®c(NH4+)¡¤c(OH-)

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºµ¥Ñ¡Ìâ

ÓÐÒ»ÖÖËáʽÑÎAHB£¬ËüµÄË®ÈÜÒº³ÊÈõ¼îÐÔ¡£ÔòÒÔÏÂ˵·¨£º
¢ÙÏàͬÎïÖʵÄÁ¿Å¨¶ÈµÄAOHÈÜÒººÍH2BÈÜÒº£¬Ç°ÕߵĵçÀë³Ì¶È´óÓÚºóÕߵĵçÀë³Ì¶È£»
¢ÚH2B²»ÊÇÇ¿Ë᣻
¢ÛHB£­µÄµçÀë³Ì¶È´óÓÚHB£­µÄË®½â³Ì¶È£»
¢Ü¸ÃÑÎÈÜÒºµÄµçÀë·½³Ìʽһ°ãд³É£ºAHB====A++HB£­£¬HB£­H++B2£­
ÆäÖдíÎóÑ¡ÏîµÄ×éºÏÊÇ(   )

A£®¢Ù¢Ú B£®¢Û¢Ü C£®¢Ú¢Û D£®¢Ù¢Ü

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸