ÌâÄ¿ÄÚÈÝ
»Ø´ðÏÂÁÐÎÊÌ⣺
(1)д³öÅÝÄÃð»ðÆ÷µÄÃð»ðÔÀíµÄÀë×Ó·½³Ìʽ
(2)ÒÑÖª25¡æ£¬101 kPaʱ£º
S(s)£«O2(g)==SO2(g) ∆H£½-296.8 kJ/mol
2Cu(s)£«O2(g)==2CuO(s) ∆H£½-314.6 kJ/mol
Cu(s)£«S(s)==CuS(s) ∆H£½-53.1 kJ/mol
д³öCuS(s)ÓëO2(g)·´Ó¦Éú³ÉCuO(s)ºÍSO2(g)µÄÈÈ»¯Ñ§·½³Ìʽ ¡£
(3)ÒÑÖª³£ÎÂÏÂAI(OH)3µÄKsp=l.0¡Á10-33£¬ÈôÈÜÒºÖÐc(Al3+)Ϊ1.0 mol/L£¬Çë¼ÆËãAl3+¿ªÊ¼³ÁµíµÄpH= ¡£³£ÎÂÏ£¬Å¨¶È¾ùΪ0.01mol/LµÄCH3COOHºÍCH3COONaµÄ»ìºÏÒºÖУ¬PH = a£¬Ôò´×ËáµÄµçÀë³£ÊýԼΪKa = ¡£
(4)ÔÚ³£ÎÂÏ£¬ÏòV L pH=12µÄBa(OH)2ÈÜÒºÖÐÖðµÎ¼ÓÈëÒ»¶¨Å¨¶ÈµÄNaHSO4Ï¡ÈÜÒº£¬µ±ÈÜÒºÖеÄBa2+ Ç¡ºÃ³ÁµíÍêȫʱ£¬ÈÜÒºpH=11¡£ÔòBa(OH)2ÈÜÒºÓëNaHSO4ÈÜÒºµÄÌå»ý±ÈΪ £¬NaHSO4ÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈΪ mol/L¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿