ÒÑÖªHF¡¢CH3COOH¾ùΪÈõËᣬËáÐÔÇ¿Èõ˳ÐòΪHF£¾CH3COOH¡£ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨    £©

       A£®Å¨¶È¾ùΪ0.1mol?L-1µÄNaF¡¢CH3COONaÈÜÒºÏà±È½Ï£¬CH3COONaÈÜÒº¼îÐÔ½ÏÇ¿

       B£®0.1mol?L-1CH3COOHÈÜÒº£¬¼ÓˮϡÊ͹ý³ÌÖУ¬ËùÓÐÀë×ÓŨ¶È¾ù¼õС

       C£®NaFÈÜÒºÖк¬ÓÐNa+¡¢F-¡¢H+¡¢OH-¡¢H2O¡¢HFÁùÖÖ΢Á£

       D£®NaFÈÜÒºÖмÓÈëÉÙÁ¿NaOH¹ÌÌ壬ÈÜÒºÖУÛF-£Ý±ä´ó

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÒÑÖªHF¡¢CH3COOH¾ùΪÈõËᣬËáÐÔÇ¿Èõ˳ÐòΪHF£¾CH3COOH£®ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÒÑÖªHF±ÈCH3COOHÒ×µçÀ룮¹ØÓÚÎïÖʵÄÁ¿Å¨¶È¡¢Ìå»ý¶¼ÏàͬµÄNaFÈÜÒººÍCH3COONaÈÜÒº£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2015½ì½­ËÕÊ¡½­Äþ·ÖУ¸ß¶þÉÏѧÆÚÑ¡ÐÞÆÚÄ©»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÒÑÖªHF±ÈCH3COOHÒ×µçÀë¡£¹ØÓÚÎïÖʵÄÁ¿Å¨¶È¡¢Ìå»ý¶¼ÏàͬµÄNaFÈÜÒººÍCH3COOHÈÜÒº£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

A£®CH3COONaÈÜÒºÖУ¬c(CH3COO-)> c(Na£«) £¾c(OH£­) £¾c(H£«

B£®ÔÚÏàͬÌõ¼þÏ£¬Á½ÈÜÒºµÄpH´óСΪ£ºCH3COONa<NaF

C£®Á½ÈÜÒºÏà±È½Ï£¬CH3COONaÈÜÒºÖеÄÀë×Ó×ÜÊý¶à 

D£®CH3COONaÈÜÒºÖУ¬c(H+)+c(CH3COOH)=c(OH-

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2014½ì¼ªÁÖÊ¡¸ß¶þÉÏѧÆÚÆÚÄ©¿¼ÊÔ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÒÑÖªHF¡¢CH3COOH¾ùΪÈõËᣬËáÐÔÇ¿Èõ˳ÐòΪHF£¾CH3COOH¡£ÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ

A£®Å¨¶È¾ùΪ0.1mol¡¤L-1µÄNaF¡¢CH3COONaÈÜÒºÏà±È½Ï£¬CH3COONaÈÜÒº¼îÐÔ½ÏÇ¿

B£®0.1mol¡¤L-1CH3COOHÈÜÒº£¬¼ÓˮϡÊ͹ý³ÌÖУ¬ËùÓÐÀë×ÓŨ¶È¾ù¼õС

C£®NaFÈÜÒºÖк¬ÓÐNa+¡¢F-¡¢H+¡¢OH-¡¢H2O¡¢HFÁùÖÖ΢Á£

D£®NaFÈÜÒºÖмÓÈëÉÙÁ¿NaOH¹ÌÌ壬ÈÜÒºÖÐc£¨F-£©±ä´ó

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2010-2011ѧÄêºþ±±Ê¡¸ßÈý¶þÔ·ݵ÷Ñп¼ÊÔ£¨Àí×Û£©»¯Ñ§²¿·Ö ÌâÐÍ£ºÑ¡ÔñÌâ

ÒÑÖªHF±ÈCH3COOHÒ×µçÀë¡£¹ØÓÚÎïÖʵÄÁ¿Å¨¶È¡¢Ìå»ý¶¼ÏàͬµÄNaFÈÜÒººÍCH3COONaÈÜÒº£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ (   )

A£®Á½ÈÜÒºÏà±È½Ï£¬NaFÈÜÒºÖеÄÀë×Ó×ÜÊý½Ï¶à

B£®ÔÚÏàͬÌõ¼þÏ£¬Á½ÈÜÒºµÄpH´óСΪ£º CH3COONa< NaF

C£®NaFÈÜÒºÖУºc(H+)+c(HF)= c(OH-)+ c(F-)

D£®CH3COONaÈÜÒºÖУºc(CH3COO-)>c(Na+)>c(OH-)>c(H+)

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸