ÌâÄ¿ÄÚÈÝ
£¨9·Ö£©ÓÐÒ»ÂÁ·ÛºÍFe3O4·ÛÄ©×é³ÉµÄÂÁÈȼÁ£¬ÔÚ¸ô¾ø¿ÕÆøµÄÌõ¼þϼÓÈÈʹ֮³ä·Ö·´Ó¦¡£½«·´Ó¦ºóËùµÃ»ìºÏÎïÑÐϸ£¬²¢·Ö³É¾ùÔȵÄÁ½µÈ·Ý£¬ÔÚÒ»·ÝÖмÓ×ãÁ¿µÄÇâÑõ»¯ÄÆÈÜÒº£¬ÁíÒ»·ÝÖмÓÈë×ãÁ¿µÄÑÎËᣬ·´Ó¦ºó£¬Ç°ÕßÏûºÄm mol NaOH£¬·Å³öÆøÌå0.336 L£»ºóÕßÏûºÄn mol HCl£¬·Å³öÆøÌåV L£¬Èô½«µÈÖÊÁ¿µÄÂÁÈȼÁÖ±½ÓÓë×ãÁ¿Ï¡ÁòËá×÷Ó㬿ɵÃ3.36 LÆøÌ壨ÉÏÊöÆøÌåÌå»ý¾ùÒÑ»»Ëã³É±ê×¼×´¿ö£©¡£ÊÔÇóÂÁÈȼÁÖÐAlµÄÖÊÁ¿·ÖÊý¡£
28.0%
£¨1£©ÂÁÈȼÁÖ±½ÓÓëH2SO4×÷ÓÃʱ²úÉúÆøÌåµÄ·´Ó¦ÈçÏ£º
2Al £« 3 H2SO4 £½ Al2(SO4)3 £« 3 H2¡ü
54.0 g 67.2 L
m(Al) 3.36 L
ÁÐʽ¿É½âµÃ£ºm(Al)£½2.70 g
ÂÁÈÈ·´Ó¦ºóµÄ»ìºÏÎïÓöNaOHÄܷųöH2£¬±íÃ÷ÂÁÈÈ·´Ó¦AlÊ£Ó࣬Ôò£º
2Al £« 2NaOH £« 6H2O £½ 2Na [Al(HO)4] £« 3 H2¡ü
54.0 g 67.2 L
m(Al) 0.336 L
ÁÐʽ¿ÉÇóµÃ£ºmÓà(Al)£½0.540 g
ÂÁÈȼÁÖÐFe3O4µÄÖÊÁ¿¿ÉÇó£º
3 Fe3O4 £« 8 Al 4 Al2O3 £« 9 Fe
696 g 216 g
m(Fe3O4) 2.70g£0.540g
ÁÐʽ¿ÉÇóµÃ£ºm(Fe3O4)£½6.96 g
Ôò£ºw(Al)£½¡Á100%£½28.0%
2Al £« 3 H2SO4 £½ Al2(SO4)3 £« 3 H2¡ü
54.0 g 67.2 L
m(Al) 3.36 L
ÁÐʽ¿É½âµÃ£ºm(Al)£½2.70 g
ÂÁÈÈ·´Ó¦ºóµÄ»ìºÏÎïÓöNaOHÄܷųöH2£¬±íÃ÷ÂÁÈÈ·´Ó¦AlÊ£Ó࣬Ôò£º
2Al £« 2NaOH £« 6H2O £½ 2Na [Al(HO)4] £« 3 H2¡ü
54.0 g 67.2 L
m(Al) 0.336 L
ÁÐʽ¿ÉÇóµÃ£ºmÓà(Al)£½0.540 g
ÂÁÈȼÁÖÐFe3O4µÄÖÊÁ¿¿ÉÇó£º
3 Fe3O4 £« 8 Al 4 Al2O3 £« 9 Fe
696 g 216 g
m(Fe3O4) 2.70g£0.540g
ÁÐʽ¿ÉÇóµÃ£ºm(Fe3O4)£½6.96 g
Ôò£ºw(Al)£½¡Á100%£½28.0%
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿