ÌâÄ¿ÄÚÈÝ

10£®A¡¢B¡¢C¡¢DÊÇËÄÖÖ³£¼ûµÄµ¥ÖÊ£¬A¡¢BΪ½ðÊô£¬C¡¢D³£ÎÂÏÂÊÇÆøÌ壬ÇÒDΪ»ÆÂÌÉ«ÆøÌ壮¼×¡¢ÒÒ¡¢±ûΪ³£¼ûµÄ»¯ºÏÎ¼×ÊǺÚÉ«ÇÒ¾ßÓдÅÐÔµÄÎïÖÊ£®ËüÃÇÖ®¼äµÄת»¯¹ØϵÈçͼËùʾ£º

Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©BÓë¼×·´Ó¦µÄ»¯Ñ§·½³ÌʽÊÇ3Fe3O4+8Al$\frac{\underline{\;¸ßÎÂ\;}}{\;}$9Fe+4Al2O3£®
£¨2£©³£ÎÂÏ£¬½«A»òBµÄµ¥ÖÊ·ÅÈëŨÁòËá»òŨÏõËáÖУ¬ÊÇ·ñÈܽ⣿·ñ£¨Ìî¡°ÊÇ¡±»ò¡°·ñ¡±£©£®
£¨3£©½«±ûÈÜÓÚË®Åä³ÉÈÜÒº£¬¼ìÑé±ûÖÐÑôÀë×ӵķ½·¨ÊÇÈ¡ÉÙÁ¿±ûµÄÈÜÒºÓÚÊÔ¹ÜÖУ¬µÎ¼ÓKSCNÈÜÒº£¬ÈôÈÜÒº±äºì£¬ËµÃ÷±ûÖдæÔÚFe3+
£¨4£©Ð´³öAÓëË®ÕôÆø·´Ó¦Éú³ÉCºÍ¼×µÄ»¯Ñ§·½³Ìʽ3Fe+4H2O£¨g£©$\frac{\underline{\;¸ßÎÂ\;}}{\;}$Fe3O4+4H2£®
£¨5£©½«A¡¢BÁ½ÖÖ½ðÊô°´Ò»¶¨µÄÖÊÁ¿±È×é³É»ìºÏÎ
¢ÙÈ¡Ò»¶¨ÖÊÁ¿µÄ¸Ã»ìºÏÎÏòÆäÖмÓÈë×ãÁ¿µÄNaOHÈÜÒº£¬Éú³ÉÆøÌåµÄÌå»ýÔÚ±ê×¼×´¿öÏÂΪn L£¬BÓëNaOHÈÜÒº·´Ó¦µÄÀë×Ó·½³ÌʽÊÇ2Al+2OH-+2H2O=2AlO2-+3H2¡ü£¬»ìºÏÎïÖÐBµÄÎïÖʵÄÁ¿Îª$\frac{n}{33.6}$mol£¨Óú¬×ÖĸµÄ·ÖÊýʽ±íʾ£©£®
¢ÚÁíÈ¡ÏàͬÖÊÁ¿µÄ¸Ã»ìºÏÎÏòÆäÖмÓÈë×ãÁ¿µÄÏ¡ÁòËᣬ¹ÌÌåÈ«²¿Èܽ⣬Éú³ÉÆøÌåµÄÌå»ýÔÚ±ê×¼×´¿öÏÂΪmL£¬¸Ã·´Ó¦ÖÐתÒƵç×ÓµÄÎïÖʵÄÁ¿Îª$\frac{m}{11.2}$mol£¬»ìºÏÎïÖÐAµÄÖÊÁ¿Îª$\frac{m-n}{22.4}$g£¨Óú¬×ÖĸµÄ·ÖÊýʽ±íʾ£©£®

·ÖÎö A¡¢BΪ½ðÊô£¬C¡¢D³£ÎÂÏÂÊÇÆøÌ壬ÇÒDΪ»ÆÂÌÉ«ÆøÌ壮¼×¡¢ÒÒ¡¢±ûΪ³£¼ûµÄ»¯ºÏÎ¼×ÊǺÚÉ«ÇÒ¾ßÓдÅÐÔµÄÎïÖÊ£¬½áºÏת»¯¹Øϵ¿ÉÖª£¬¼×ΪËÄÑõ»¯ÈýÌú£¬BΪAl£¬AΪFe£¬CΪÇâÆø£¬ÒÒΪƫÂÁËáÄÆ£¬±ûΪÂÈ»¯Ìú£¬È»ºó½áºÏÔªËØ»¯ºÏÎï֪ʶ¼°»¯Ñ§ÓÃÓïÀ´½â´ð£®

½â´ð ½â£ºA¡¢BΪ½ðÊô£¬C¡¢D³£ÎÂÏÂÊÇÆøÌ壬ÇÒDΪ»ÆÂÌÉ«ÆøÌ壮¼×¡¢ÒÒ¡¢±ûΪ³£¼ûµÄ»¯ºÏÎ¼×ÊǺÚÉ«ÇÒ¾ßÓдÅÐÔµÄÎïÖÊ£¬½áºÏת»¯¹Øϵ¿ÉÖª£¬¼×ΪËÄÑõ»¯ÈýÌú£¬BΪAl£¬AΪFe£¬CΪÇâÆø£¬ÒÒΪƫÂÁËáÄÆ£¬±ûΪÂÈ»¯Ìú£¬
£¨1£©BÓë¼×·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ3Fe3O4+8Al$\frac{\underline{\;¸ßÎÂ\;}}{\;}$9Fe+4Al2O3£¬
¹Ê´ð°¸Îª£º3Fe3O4+8Al$\frac{\underline{\;¸ßÎÂ\;}}{\;}$9Fe+4Al2O3£»    
£¨2£©³£ÎÂÏ£¬½«A»òBµÄµ¥ÖÊ·ÅÈëŨÁòËá»òŨÏõËáÖз¢Éú¶Û»¯£¬²»ÄÜÍêÈ«Èܽ⣬
¹Ê´ð°¸Îª£º·ñ£»
£¨3£©¼ìÑéÌúÀë×ӵķ½·¨ÎªÈ¡ÉÙÁ¿±ûµÄÈÜÒºÓÚÊÔ¹ÜÖУ¬µÎ¼ÓKSCNÈÜÒº£¬ÈôÈÜÒº±äºì£¬ËµÃ÷±ûÖдæÔÚFe3+£¬
¹Ê´ð°¸Îª£ºÈ¡ÉÙÁ¿±ûµÄÈÜÒºÓÚÊÔ¹ÜÖУ¬µÎ¼ÓKSCNÈÜÒº£¬ÈôÈÜÒº±äºì£¬ËµÃ÷±ûÖдæÔÚFe3+£»
£¨4£©AÓëË®ÕôÆø·´Ó¦Éú³ÉCºÍ¼×µÄ»¯Ñ§·½³ÌʽΪ3Fe+4H2O£¨g£©$\frac{\underline{\;¸ßÎÂ\;}}{\;}$Fe3O4+4H2£¬
¹Ê´ð°¸Îª£º3Fe+4H2O£¨g£©$\frac{\underline{\;¸ßÎÂ\;}}{\;}$Fe3O4+4H2£»
£¨5£©¢ÙBÓëNaOHÈÜÒº·´Ó¦µÄÀë×Ó·½³ÌʽÊÇ2Al+2OH-+2H2O=2AlO2-+3H2¡ü£¬Éú³ÉÆøÌåµÄÌå»ýÔÚ±ê×¼×´¿öÏÂΪn L£¬n£¨H2£©=$\frac{n}{22.4}$mol£¬Ôòn£¨Al£©=$\frac{n}{22.4}$mol¡Á$\frac{2}{3}$=$\frac{n}{33.6}$mol£¬¹Ê´ð°¸Îª£º2Al+2OH-+2H2O=2AlO2-+3H2¡ü£»$\frac{n}{33.6}$£»
¢ÚÁíÈ¡ÏàͬÖÊÁ¿µÄ¸Ã»ìºÏÎÏòÆäÖмÓÈë×ãÁ¿µÄÏ¡ÁòËᣬ¹ÌÌåÈ«²¿Èܽ⣬Éú³ÉÆøÌåµÄÌå»ýÔÚ±ê×¼×´¿öÏÂΪm L£¬×ªÒƵç×ÓΪ$\frac{m}{22.4}$¡Á2¡Á£¨1-0£©=$\frac{m}{11.2}$mol£¬»ìºÏÎïÖÐAµÄÖÊÁ¿Îªx£¬Óɵç×ÓÊغã¿ÉÖª£¬$\frac{n}{33.6}$mol¡Á3+$\frac{x}{56}$mol¡Á2=$\frac{m}{22.4}$¡Á2¡Á£¨1-0£©£¬½âµÃx=$\frac{m-n}{22.4}$£¬
¹Ê´ð°¸Îª£º$\frac{m}{11.2}$£»$\frac{m-n}{22.4}$£®

µãÆÀ ±¾Ì⿼²éÎÞ»úÎïµÄÍƶϣ¬×¢ÒâÂÁÈÈ·´Ó¦¼°DΪ»ÆÂÌÉ«ÆøÌåΪ½â´ð±¾ÌâµÄÍ»ÆÆ¿Ú£¬ÎïÖʵÄÍƶÏÊǽâ´ð±¾ÌâµÄ¹Ø¼ü£¬±¾ÌâÖеļÆËãÖ÷ÒªÉæ¼°µç×ÓÊغ㼰¹Øϵʽ£¬ÌâÄ¿ÄѶÈÖеȣ®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
20£®£¨1£©25¡æÏ£¬0.1mol/L´×ËápHΪ4£¬Ôò´ËÎÂÏ£¬¸ÃŨ¶È´×ËáµÄµçÀë¶ÈΪ0.1%£»µçÀëƽºâ³£ÊýΪ10-7£¬Ë®µçÀë³öµÄc£¨H+£©=10-10mol/L£¬¼ÓÉÙÁ¿Ë®Ï¡Êͺó£¬ÈÜÒºÖÐ$\frac{c£¨C{H}_{3}COOH£©}{c£¨C{H}_{3}CO{O}^{-}£©}$µÄÖµ¼õС£¨Ìî¡°Ôö´ó¡±»ò¡°¼õС¡±£©
£¨2£©pHÖµÏàͬµÄ HCl£¨aq£©¡¢H2SO4£¨aq£©¡¢CH3COOH£¨aq£©¸÷100mL
¢ÙÈýÖÖÈÜÒºÖÐÎïÖʵÄÁ¿Å¨¶È×î´óµÄÊÇCH3COOH£»
¢Ú·Ö±ðÓÃ0.1mol/LµÄNaOH£¨aq£©Öкͣ¬ÏûºÄNaOH£¨aq£©µÄÌå»ý·Ö±ðΪV1¡¢V2¡¢V3£¬ËüÃÇÓÉ´óµ½Ð¡µÄ˳ÐòÊÇV3£¾V1=V2£®
¢Û·´Ó¦¿ªÊ¼Ê±£¬·´Ó¦ËÙÂÊD£®£¨ÌîA¡¢HCl×î¿ì£»B¡¢H2SO4×î¿ì£»C¡¢CH3COOH×î¿ì£»D¡¢Ò»Ñù¿ì£©
£¨3£©Ï±íÊDz»Í¬Î¶ÈÏÂË®µÄÀë×Ó»ýÊý¾Ý£º
ζÈ/¡æ25t1t2
Ë®µÄÀë×Ó»ý³£Êý1¡Á10-14¦Á1¡Á10-12
ÊԻشðÏÂÁÐÎÊÌ⣺
¢ÙÈô25£¼t1£¼t2£¬Ôò¦Á£¾1¡Á10-14£¨Ìî¡°£¾¡±¡°£¼¡±»ò¡°=¡±£©
¢Ú25¡æÏ£¬Ä³Na2SO4ÈÜÒºÖÐc£¨SO42-£©=5¡Á10-4 mol•L-1£¬È¡¸ÃÈÜÒº1mL£¬¼ÓˮϡÊÍÖÁ10mL£¬ÔòÏ¡ÊͺóÈÜÒºÖÐc £¨Na+£©£ºc £¨OH-£©=1000£º1
¢Ût2¡æÏ£¬½«pH=11µÄ¿ÁÐÔÄÆÈÜÒºV1 LÓëpH=1µÄÏ¡ÁòËáV2 L»ìºÏ£¨Éè»ìºÏºóÈÜÒºµÄÌå»ýΪԭÁ½ÈÜÒºÌå»ýÖ®ºÍ£©£¬ËùµÃ»ìºÏÈÜÒºµÄpH=2£¬ÔòV1£ºV2=9£º11£®´ËÈÜÒºÖи÷ÖÖÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡µÄÅÅÁÐ˳ÐòÊÇc£¨Na+£©£¾c£¨SO42-£©£¾c£¨H+£©£¾c£¨OH-£©
£¨4£©25¡æʱ£¬ÈôÌå»ýΪVa£¬pH=aµÄijһԪǿËáÓëÌå»ýΪVb£¬pH=bµÄijһԪǿ¼î»ìºÏ£¬Ç¡ºÃÖкͣ¬ÇÒÒÑÖªVa£¼VbºÍa=0.5b£¬ÔòaµÄÈ¡Öµ·¶Î§ÊÇ$\frac{7}{2}$£¼a£¼$\frac{14}{3}$£®
19£®ÒÒõ£±½°·¾ßÓнâÈÈÕòÍ´×÷Óã¬ÊǽÏÔçʹÓõĽâÈÈÕòÍ´Ò©£¬ÓС°ÍËÈȱù¡±Ö®³Æ£¬ÆäÖƱ¸Ô­ÀíÈçÏ£ºNH2+CH3COOH$\stackrel{¡÷}{?}$NHCOOCH3+HO
ÒÑÖª£º
¢Ù±½°·Ò×±»Ñõ»¯£®
¢ÚÒÒõ£±½°·¡¢±½°·ºÍ´×ËáµÄ²¿·ÖÎïÀíÐÔÖÊÈçÏÂ±í£º
ÎïÖÊÈÛµã·ÐµãÈܽâ¶È
ÒÒõ£±½°·114.3¡æ305¡æ΢ÈÜÓÚÀäË®¡¢Ò×ÈÜÓÚÈÈË®
±½°·-6¡æ184.4¡æ΢ÈÜÓÚË®
´×Ëá16.6¡æ118¡æÒ×ÈÜÓÚË®
ʵÑé²½ÖèÈçÏ£º
²½Öè1£ºÔÚaÖУ¬¼ÓÈë9mL £¨0.10mol£©±½°·¡¢15mL£¨0.27mol£©±ù´×Ëá¼°ÉÙÐíп·Û£¬ÒÀÕÕÈçͼװÖÃ×é×°ÒÇÆ÷£®
²½Öè2£º¿ØÖÆζȼƶÁÊýÔÚ105¡æ×óÓÒ£¬Ð¡»ð¼ÓÈÈ»ØÁ÷ÖÁ·´Ó¦ÍêÈ«£®
²½Öè3£º³ÃÈȽ«·´Ó¦»ìºÏÎïµ¹ÈëÊ¢ÓÐ100mL ÀäË®µÄÉÕ±­ÖУ¬ÀäÈ´ºó³éÂË£¨Ò»ÖÖ¿ìËÙ¹ýÂË·½·¨£©¡¢Ï´µÓ£¬µÃµ½´Ö²úÆ·£®
²½Öè4£º½«²½Öè3ËùµÃ´Ö²úÆ·½øÒ»²½Ìá´¿ºó£¬³ÆµÃ²úÆ·ÖÊÁ¿Îª10.8g£®
Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©ÒÇÆ÷aµÄÃû³ÆΪԲµ×ÉÕÆ¿£¬ËùÑ¡ÒÇÆ÷aµÄ×î¼Ñ¹æ¸ñÊÇB£¨ÌîÐòºÅ£©£®
A.25mL      B.50mL       C.100mL       D.250mL
£¨2£©ÊµÑéÖмÓÈëÉÙÐíп·ÛµÄÄ¿µÄÊÇ·ÀÖ¹±½°·±»Ñõ»¯£¬Í¬Ê±Æð×Å·ÐʯµÄ×÷Óã®
£¨3£©²½Öè2ÖУ¬¿ØÖÆζȼƶÁÊýÔÚ105¡æ×óÓÒµÄÔ­ÒòÊÇζȹýµÍ²»ÄÜÕô³ö·´Ó¦ËùÉú³ÉµÄË®»òζȹý¸ßδ·´Ó¦µÄÒÒËáÕô³ö£®
£¨4£©ÅжϷ´Ó¦ÒÑ»ù±¾ÍêÈ«µÄ·½·¨Îª×¶ÐÎÆ¿²»ÔÙÓÐË®Ôö¼Ó£®
£¨5£©²½Öè3ÖгÃÈȽ«»ìºÏÎïµ¹ÈëÊ¢ÓÐÀäË®µÄÉÕ±­ÖУ¬¡°³ÃÈÈ¡±µÄÔ­ÒòÊÇÀäÈ´ºó¹ÌÌåÎö³öÕ³ÔÚÆ¿±ÚÉϲ»Ò×´¦Àí£®
£¨6£©²½Öè4ÖдֲúÆ·½øÒ»²½Ìá´¿£¬¸ÃÌá´¿·½·¨ÊÇÖؽᾧ£®
£¨7£©±¾´ÎʵÑéµÄ²úÂÊΪ80%£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø