ÌâÄ¿ÄÚÈÝ
£¨15·Ö£©µª»¯Åð£¨BN£©ÊÇÒ»ÖÖÖØÒªµÄ¹¦ÄÜÌմɲÄÁÏ¡£ÒÔÌìÈ»ÅðɰΪÆðʼÎ¾¹ýһϵÁз´Ó¦¿ÉÒԵõ½BF3ºÍBN£¬ÈçÏÂͼËùʾ£º
Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÓÉB2O3ÖƱ¸BF3¡¢BNµÄ»¯Ñ§·½³ÌʽÒÀ´ÎÊÇ £»
£»
£¨2£©»ù̬BÔ×ӵĵç×ÓÅŲ¼Í¼Îª £» BNÖÐBÔªËصĻ¯ºÏ¼ÛΪ £»
£¨3£©ÔÚBF3·Ö×ÓÖУ¬F¡ªB¡ªFµÄ¼ü½ÇÊÇ £¬BÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ £»
£¨4£©ÒÑÖª£º BF3 + NaF£¨¹ýÁ¿£©= NaBF4£»»¯ºÏÎïNaBF4º¬ÓеĻ¯Ñ§¼üÀàÐÍΪ £»BF4£ÖÐF¡ªB¡ªFµÄ¼ü½ÇÊÇ £¬BÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ £¬BF4£µÄÁ¢Ìå¹¹ÐÍΪ £»
£¨5£©ÔÚÓëʯī½á¹¹ÏàËƵÄÁù·½µª»¯Åð¾§ÌåÖУ¬²ãÄÚBÔ×ÓÓëNÔ×ÓÖ®¼äµÄÏ໥×÷ÓÃΪ £¬²ã¼ä×÷ÓÃÁ¦Îª ¡£º¬1 mol BNµÄÁù·½µª»¯Åð¾§ÌåÖк¬B-NµÄ¸öÊýΪ NA¡£
Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÓÉB2O3ÖƱ¸BF3¡¢BNµÄ»¯Ñ§·½³ÌʽÒÀ´ÎÊÇ £»
£»
£¨2£©»ù̬BÔ×ӵĵç×ÓÅŲ¼Í¼Îª £» BNÖÐBÔªËصĻ¯ºÏ¼ÛΪ £»
£¨3£©ÔÚBF3·Ö×ÓÖУ¬F¡ªB¡ªFµÄ¼ü½ÇÊÇ £¬BÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ £»
£¨4£©ÒÑÖª£º BF3 + NaF£¨¹ýÁ¿£©= NaBF4£»»¯ºÏÎïNaBF4º¬ÓеĻ¯Ñ§¼üÀàÐÍΪ £»BF4£ÖÐF¡ªB¡ªFµÄ¼ü½ÇÊÇ £¬BÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪ £¬BF4£µÄÁ¢Ìå¹¹ÐÍΪ £»
£¨5£©ÔÚÓëʯī½á¹¹ÏàËƵÄÁù·½µª»¯Åð¾§ÌåÖУ¬²ãÄÚBÔ×ÓÓëNÔ×ÓÖ®¼äµÄÏ໥×÷ÓÃΪ £¬²ã¼ä×÷ÓÃÁ¦Îª ¡£º¬1 mol BNµÄÁù·½µª»¯Åð¾§ÌåÖк¬B-NµÄ¸öÊýΪ NA¡£
1£©£¨4·Ö£©B2O3+3CaF2+3H2SO4 2BF3¡ü+3CaSO4 +3H2O £»
B2O3+2NH32BN+3H2O£»
£¨2£©£¨2·Ö£© £» +3
£¨3£©£¨2·Ö£©1200 £¬ sp2£»
£¨4£©£¨4·Ö£©Àë×Ó¼ü¡¢¼«ÐÔ¹²¼Û¼ü¡¢Åäλ¼ü £» 109028£¬ £¬ sp3 £¬ÕýËÄÃæÌ壻
£¨5£©£¨3 ·Ö£© ¼«ÐÔ¹²¼Û¼ü £¬·¶µÂ»ªÁ¦ £» 3¡£
B2O3+2NH32BN+3H2O£»
£¨2£©£¨2·Ö£© £» +3
£¨3£©£¨2·Ö£©1200 £¬ sp2£»
£¨4£©£¨4·Ö£©Àë×Ó¼ü¡¢¼«ÐÔ¹²¼Û¼ü¡¢Åäλ¼ü £» 109028£¬ £¬ sp3 £¬ÕýËÄÃæÌ壻
£¨5£©£¨3 ·Ö£© ¼«ÐÔ¹²¼Û¼ü £¬·¶µÂ»ªÁ¦ £» 3¡£
£¨1£©¸ù¾Ý·´Ó¦ÎïºÍÉú³ÉÎï¿ÉÖª£¬·½³Ìʽ·Ö±ðÊÇ
B2O3+3CaF2+3H2SO4 2BF3¡ü+3CaSO4 +3H2O¡¢B2O3+2NH32BN+3H2O¡£
£¨2£©¸ù¾Ý¹¹ÔìÔÀí¿Éд³ö»ù̬BÔ×ӵĵç×ÓÅŲ¼Í¼¡£µªÔªËØÊǵڢõA£¬×îµÍ¼ÛÊÇ£3¼Û£¬ËùÒÔBÔªËصĻ¯ºÏ¼ÛÊÇ£«3¼Û¡£
£¨3£©ÔÚBF3·Ö×ÓÖУ¬ÖÐÐÄÔ×ÓBÔ×ÓûÓй¶Եç×Ó£¬ËùÒÔÆä½á¹¹ÊÇƽÃæÈý½ÇÐΣ¬¼ü½ÇÊÇ120¡ã¡£ÆäÖÐBÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪsp2ÔÓ»¯¡£
£¨4£©»¯ºÏÎïNaBF4ÊôÓÚÄÆÑΣ¬Òò´Ëº¬ÓеĵĻ¯Ñ§¼üÀàÐÍΪÀë×Ó¼üºÍ¼«ÐÔ¼ü¡£ÓÉÓÚ·úÔ×Óº¬Óй¶Եç×Ó£¬ËùÒÔ»¹º¬ÓÐÅäλ¼ü¡£Í¬ÑùÖÐÐÄÔ×ÓBÔ×ÓûÓй¶Եç×Ó£¬ËùÒÔÆä½á¹¹ÊÇÕýËÄÃæÌåÐΣ¬¼ü½ÇÊÇ109028£¬£¬ BÔ×ÓÊÇsp3ÔÓ»¯¡£
£¨5£©²ãÄÚBÔ×ÓÓëNÔ×ÓÖ®¼äµÄÏ໥×÷ÓÃΪ¼«ÐÔ¼ü£¬¶ø²ãÓë²ãÖ®¼äÊÇ·Ö×Ó¼ä×÷ÓÃÁ¦¡£ÒòΪBÔ×ÓÄÜÐγÉ3¸öB£N¼ü£¬ËùÒÔº¬1 mol BNµÄÁù·½µª»¯Åð¾§ÌåÖк¬B-NµÄ¸öÊýΪ3NA¡£
B2O3+3CaF2+3H2SO4 2BF3¡ü+3CaSO4 +3H2O¡¢B2O3+2NH32BN+3H2O¡£
£¨2£©¸ù¾Ý¹¹ÔìÔÀí¿Éд³ö»ù̬BÔ×ӵĵç×ÓÅŲ¼Í¼¡£µªÔªËØÊǵڢõA£¬×îµÍ¼ÛÊÇ£3¼Û£¬ËùÒÔBÔªËصĻ¯ºÏ¼ÛÊÇ£«3¼Û¡£
£¨3£©ÔÚBF3·Ö×ÓÖУ¬ÖÐÐÄÔ×ÓBÔ×ÓûÓй¶Եç×Ó£¬ËùÒÔÆä½á¹¹ÊÇƽÃæÈý½ÇÐΣ¬¼ü½ÇÊÇ120¡ã¡£ÆäÖÐBÔ×ÓµÄÔÓ»¯¹ìµÀÀàÐÍΪsp2ÔÓ»¯¡£
£¨4£©»¯ºÏÎïNaBF4ÊôÓÚÄÆÑΣ¬Òò´Ëº¬ÓеĵĻ¯Ñ§¼üÀàÐÍΪÀë×Ó¼üºÍ¼«ÐÔ¼ü¡£ÓÉÓÚ·úÔ×Óº¬Óй¶Եç×Ó£¬ËùÒÔ»¹º¬ÓÐÅäλ¼ü¡£Í¬ÑùÖÐÐÄÔ×ÓBÔ×ÓûÓй¶Եç×Ó£¬ËùÒÔÆä½á¹¹ÊÇÕýËÄÃæÌåÐΣ¬¼ü½ÇÊÇ109028£¬£¬ BÔ×ÓÊÇsp3ÔÓ»¯¡£
£¨5£©²ãÄÚBÔ×ÓÓëNÔ×ÓÖ®¼äµÄÏ໥×÷ÓÃΪ¼«ÐÔ¼ü£¬¶ø²ãÓë²ãÖ®¼äÊÇ·Ö×Ó¼ä×÷ÓÃÁ¦¡£ÒòΪBÔ×ÓÄÜÐγÉ3¸öB£N¼ü£¬ËùÒÔº¬1 mol BNµÄÁù·½µª»¯Åð¾§ÌåÖк¬B-NµÄ¸öÊýΪ3NA¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿