ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÏÂÁÐ˵·¨´íÎóµÄÊÇ
A.ÖкÍÈȲⶨʵÑéÖÐÐèÒªµÄ²£Á§ÒÇÆ÷ÓУºÉÕ±¡¢Á¿Í²¡¢Î¶ȼơ¢»·Ðβ£Á§½Á°è°ô
B.ÒÒÏ©µÄȼÉÕÈÈÊÇ1411.3kJ¡¤mol£1£¬ÔòÒÒϩȼÉÕµÄÈÈ»¯Ñ§·½³ÌʽΪ£ºC2H4(g)+3O2(g)£½2CO2(g)+2H2O(g)¦¤H£½£1411.3kJ¡¤mol£1
C.P(s£¬ºìÁ×)£½P(s£¬ºÚÁ×)£¬¦¤H£½£39.3kJ¡¤mol£1£»P(s£¬°×Á×)£½P(s£¬ºìÁ×)£¬¦¤H£½£17.6kJ¡¤mol£1ÓÉ´ËÍÆÖª£¬×îÎȶ¨µÄÁ×µ¥ÖÊÊǺÚÁ×
D.MgCO3·Ö½âµÄÄÜÁ¿¹ØϵÈçͼËùʾ£ºÔò¦¤H£½¦¤H1+¦¤H2+¦¤H3
¡¾´ð°¸¡¿B
¡¾½âÎö¡¿
A. ÖкÍÈȲⶨʵÑéÖÐÐèÒªµÄ²£Á§ÒÇÆ÷ÓУº´ó¡¢Ð¡ÉÕ±¡¢Á¿Í²¡¢Î¶ȼơ¢»·Ðβ£Á§½Á°è°ô£¬ÓëÌâÒâ²»·û£¬A´íÎó£»
B. ÒÒÏ©µÄȼÉÕÈÈÊÇ1411.3kJ¡¤mol£1£¬Îª1mol¿ÉȼÎïÍêȫȼÉÕÉú³ÉÎȶ¨µÄÑõ»¯ÎïʱÊͷŵÄÈÈÁ¿£¬ÔòÒÒϩȼÉÕµÄÈÈ»¯Ñ§·½³ÌʽΪ£ºC2H4(g)+3O2(g)£½2CO2(g)+2H2O(l)¦¤H£½£1411.3kJ¡¤mol£1£¬ ·ûºÏÌâÒ⣬BÕýÈ·£»
C. P(s£¬ºìÁ×)£½P(s£¬ºÚÁ×)£¬¦¤H£½£39.3kJ¡¤mol£1£»P(s£¬°×Á×)£½P(s£¬ºìÁ×)£¬¦¤H£½£17.6kJ¡¤mol£1ÓÉ´ËÍÆÖª£¬ºÚÁ×¾ßÓеÄÄÜÁ¿×îµÍ£¬Ôò×îÎȶ¨µÄÁ×µ¥ÖÊÊǺÚÁ×£¬ÓëÌâÒâ²»·û£¬C´íÎó£»
D. ¸ù¾ÝMgCO3·Ö½âµÄÄÜÁ¿¹Øϵͼ£¬Ôò¦¤H£½¦¤H1+¦¤H2+¦¤H3£¬ÓëÌâÒâ²»·û£¬D´íÎó£»
´ð°¸ÎªB¡£
¡¾ÌâÄ¿¡¿£¨»·¾³ÎÛȾÓë×ÊÔ´¶ÌȱÎÊÌâÈÕÒæÍ»³ö£¬×ÊÔ´µÄÑ»·ÀûÓÃÓÈΪÖØÒª¡£¹¤Òµ ÉÏÀûÓú¬ Cu2O£¨º¬ÉÙÁ¿ Al2O3¡¢Fe2O3 ºÍ SiO2£©µÄ¿óÔüÌáȡ͵ŤÒÕÁ÷³ÌÈçÏ£º
ÒÑÖª£º¢ÙCu2O ÔÚËáÐÔÌõ¼þÏÂÒ×ת»¯³Éµ¥ÖÊ Cu ºÍº¬ Cu2+µÄÈÜÒº£»
¢Ú¼¸ÖÖÇâÑõ»¯Îï³ÁµíʱµÄ pH ÈçÏÂ±í£º
ÇâÑõ»¯Îï | Al(OH)3 | Fe(OH)2 | Fe(OH)3 | Cu(OH)2 |
³ÁµíʱµÄ pH | 4.0~5.2 | 5.8~8.8 | 1.1~3.2 | 5.4~6.7 |
»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©¾¼ì²â¹ÌÌå A º¬ÓеijɷÖΪ Cu ºÍÁíÒ»ÖÖÔÓÖÊ£¬´Ó¹ÌÌå A ÖзÖÀë³ö Cu µÄ¿É ÓÃÊÔ¼ÁΪ_____ÈÜÒº£¨Ìѧʽ£©¡£
£¨2£©¿óÔü¾Ëá½þ¡¢¹ýÂË¡¢Ï´µÓºóÌúÔªËصÄÖ÷Òª´æÔÚÐÎʽΪ__________ÌîÀë×Ó·ûºÅ£©£¬¼ìÑé¸ÃÀë×ӵij£Óû¯Ñ§ÊÔ¼ÁÊÇ_________________¡£
£¨3£©¼Ó NaClO Ñõ»¯²¢µ÷ÕûÈÜÒºµÄ pH Ϊ_____£¬µÃµ½³Áµí B ºÍÒ»ÖÖ¾ßÓÐƯ°× ÐÔµÄÎïÖÊ D£¬¸Ã·´Ó¦Àë×Ó·½³ÌʽΪ_________¡£
£¨4£©25¡æʱ£¬¼Ó NaOH ¹ÌÌåµ÷½ÚÈÜÒº pH µÃµ½ Al(OH)3 ³Áµí£¬Èô pH=5.3 ʱ£¬ËùµÃ ÈÜÒºÖÐ c(Al3+)=_____¡£ÒÑÖª 25¡æʱ Ksp[Al(OH)3]=1.3¡Á10-33¡£
£¨5£©ÓöèÐԵ缫µç½â»ñµÃ½ðÊôÍʱ£¬Æðʼ½×¶ÎÑô¼«²úÎïÓëÒõ¼«²úÎïµÄÎïÖʵÄÁ¿Ö®±ÈΪ___________¡£