ÇâÑõ»¯ÄÆÈÜÒº/mL | 40.00 | ||
ÑùÆ·ÖÊÁ¿/g | 7.750 | 15.50 | 23.25 |
°±ÆøÖÊÁ¿/g | 1.870 | 1.870 | 1.700 |
·ÖÎö £¨1£©¢Ù¼îʯ»ÒÓÃÓÚ¸ÉÔï°±Æø£»
¢Ú°±Æø¼«Ò×ÈÜÓÚË®£¬ÈÝÒ×·¢Éúµ¹ÎüÏÖÏó£»
¢Û·´Ó¦Éú³ÉµÄ°±Æø²»Äܹ»±»Ï¡ÁòËáÍêÈ«ÎüÊÕ£»
£¨2£©¢Ù¸ù¾ÝʵÑéÊý¾Ý£¬ÅжϳöµÚÒ»×éʵÑéÖÐÇâÑõ»¯ÄƹýÁ¿£¬ËùÓеÄï§Àë×Ó¶¼Éú³ÉÁË°±Æø£¬¸ù¾ÝµªÔ×ÓÊغãÁÐʽ¼ÆËã³öÑùÆ·ÖеªÔªËصÄÖÊÁ¿·ÖÊý£»
¢Ú¸ù¾ÝµÚÒ»×éÊý¾Ý¼ÆËã³öÁòËá狀ÍÁòËáÇâ淋ĺ¬Á¿£¬ÔÙ¸ù¾ÝµÚ¶þ×éÖÐËùÓеÄÇâÑõ»¯Äƶ¼²ÎÓëÁË·´Ó¦£¬¼´ÇâÑõ»¯ÄƲ»×㣬¼ÆËã³öÇâÑõ»¯ÄƵÄŨ¶È£»
¢Û¸ù¾ÝÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿ºÍÑùÆ·ÖÐÁòËáÇâÄƵÄÎïÖʵÄÁ¿£¬¼ÆËã³öÉú³ÉµÄ°±ÆøµÄÎïÖʵÄÁ¿¼°ÖÊÁ¿£®
½â´ð £¨1£©¢ÙÉú³ÉµÄ°±ÆøÖк¬ÓÐË®·Ö£¬Óüîʯ»ÒÎüÊÕ°±ÆøÖеÄË®·Ö£¬
¹Ê´ð°¸Îª£ºÎüÊÕ°±ÆøÖеÄË®ÕôÆø£»
¢Ú°±Æø¼«Ò×ÈÜÓÚË®£¬ÈÝÒ×·¢Éúµ¹Îü£¬ËùÒÔ¹ã¿ÚÆ¿ÄÚËÄÂÈ»¯Ì¼ÓÃÓÚ·ÀÖ¹µ¹Îü£¬
¹Ê´ð°¸Îª£º·ÀÖ¹µ¹Îü£»
¢ÛÓøÃ×°ÖýøÐÐʵÑ飬¼´Ê¹ÇâÑõ»¯ÄÆ×ãÁ¿ÇÒʵÑé¹ý³ÌÖÐÎÞ°±ÆøÍâй£¬ÓÉÓÚ×°ÖÃÄڵݱÆø²»ÄÜÍêÈ«±»Ï¡ÁòËáÎüÊÕ£¬²âµÃµÄÑùÆ·º¬µªÁ¿ÈÔ½«Æ«µÍ£¬
¹Ê´ð°¸Îª£º²ÐÁôÔÚ·´Ó¦×°ÖÃÖеݱÆøδ±»Ï¡ÁòËáÎüÊÕ£»
£¨2£©¢ÙÉ赪·ÊÁòËá淋ÄÖÊÁ¿·ÖÊýΪX£¬ÔòÁòËáÇâ淋ÄÖÊÁ¿·ÖÊýΪ£¨1-X£©£¬
´ÓʵÑé·½°¸µÄÊý¾Ý¿´³ö£¬µÚÒ»¸öʵÑéºÍµÚ¶þ¸öʵÑéÖÐÉú³ÉµÄ°±ÆøÖÊÁ¿Ïàͬ£¬ËµÃ÷µÚÒ»¸öʵÑéÖÐÇâÑõ»¯ÄÆÊǹýÁ¿µÄ£¬ËùÓÐï§Àë×Ó¶¼Éú²úÁË°±Æø£¬¸ù¾ÝµªÔªËØÊغ㣬$\frac{7.75¡ÁX}{132}$¡Á17+$\frac{7.75¡Á£¨1-X£©}{115}$=1.87
½âµÃ£ºX=0.85£¬
¼´µª·ÊÖÐÁòËá淋ÄÖÊÁ¿·ÖÊýΪ85%£¬ÁòËáÇâ淋ÄÖÊÁ¿·ÖÊýΪ15%£¬
¸ù¾ÝµªÔ×ÓÊغ㣺µªÔ×ÓµÄÎïÖʵÄÁ¿¾ÍµÈÓÚ°±ÆøµÄÎïÖʵÄÁ¿£¬
ËùÒÔÑùÆ·ÖеªÔªËصÄÖÊÁ¿·ÖÊýΪ£º$\frac{\frac{1.87}{17}¡Á14}{7.75}$¡Á100%=19.87%£¬
¹Ê´ð°¸Îª£º19.87£»
¢Ú¼ÙÈçµÚ¶þ¸öʵÑé·½°¸ÖÐÇâÑõ»¯ÄÆÊǹýÁ¿µÄ£¬ÔòÉú³É°±ÆøÖÊÁ¿Îª£º$\frac{15.50¡Á0.85}{132}$+$\frac{15.50¡Á0.15}{115}$¡Ö3.74g£¾1.87g£¬
Õâ˵Ã÷µÚ¶þ¸öʵÑé·½°¸ÖУ¬ÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿²»×㣬ÇâÑõ»¯ÄÆ·´Ó¦ÍêÁòËáÇâï§ÖеÄÇâÀë×ÓºóÈ«²¿Éú³ÉÁòËá泥¬Ê£ÓàµÄÇâÑõ¸ùÀë×Ó²»×ãÒÔ½«È«²¿ï§¸ùÀë×Ó·´Ó¦Òç³ö£¬¶øÊÇÖ»·´Ó¦ÁËÒ»²¿·ÖÁòËá泥¬·Å³öÁË1.87g°±Æø£»
¸ù¾Ý·´Ó¦·½³Ìʽ£º2NH4HSO4+2NaOH=£¨NH4£©2SO4+Na2SO4+2H2O£¬£¨NH4£©2SO4+2NaOH=Na2SO4+2NH3¡ü+2H2O£¬
¼ÓÈëµÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿Îª£ºn£¨NH4HSO4£©+n£¨NH3£©=$\frac{15.5¡Á0.15}{115}$mol+$\frac{1.87}{17}$mol¡Ö0.13mol£¬
ÇâÑõ»¯ÄÆÈÜÒºµÄŨ¶ÈΪ£º$\frac{0.13mol}{0.04L}$=3.25mol/L£¬
¹Ê´ð°¸Îª£º3.25£»
¢ÛÈôÑùÆ·ÖÊÁ¿Îª31g£¬Ôò¼ÓÈëµÄÇâÑõ»¯ÄÆÎïÖʵÄÁ¿»¹ÊÇ0.13mol£¬
¸ù¾Ý·´Ó¦·½³Ìʽ£º2NH4HSO4+2NaOH=£¨NH4£©2SO4+Na2SO4+2H2O£¬
·´Ó¦ÖÐÁòËáÇâï§ÏûºÄµÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿Îª£º$\frac{31¡Á0.15}{115}$mol=0.04mol£¬
ʣϵÄÇâÑõ»¯ÄÆÎïÖʵÄÁ¿Îª£º0.13mol-0.04mol=0.09mol£¬
¸ù¾Ý·´Ó¦·½³Ìʽ£º£¨NH4£©2SO4+2NaOH=Na2SO4+2NH3¡ü+2H2O£¬Éú³ÉµÄ°±ÆøµÄÎïÖʵÄÁ¿Îª£º0.09mol£¬
ËùÒÔÉú³ÉµÄ°±ÆøµÄÖÊÁ¿Îª£º17g/mol¡Á0.09mol=1.53g£¬
¹Ê´ð°¸Îª£º1.53£®
µãÆÀ ±¾Ì⿼²éÁ˲ⶨµª·ÊÁòËáï§ÖеªÔªËصĺ¬Á¿£¬ÌâÄ¿¼ÆËãÁ¿±È½Ï´ó£¬ÐèÒªºÏÀí·ÖÎö¡¢Ó¦ÓÃÌâÖÐʵÑéÊý¾Ý£¬µÃ³öÕýÈ·½áÂÛ£¬±¾Ìâ³ä·Ö¿¼²éÁËËùѧµÄ·ÖÎö¡¢Àí½âºÍ×ۺϼÆËãÄÜÁ¦£¬±¾ÌâÄѶÈÉÔ´ó£®
Ä꼶 | ¸ßÖÐ¿Î³Ì | Ä꼶 | ³õÖÐ¿Î³Ì |
¸ßÒ» | ¸ßÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ | ³õÒ» | ³õÒ»Ãâ·Ñ¿Î³ÌÍƼö£¡ |
¸ß¶þ | ¸ß¶þÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õ¶þ | ³õ¶þÃâ·Ñ¿Î³ÌÍƼö£¡ |
¸ßÈý | ¸ßÈýÃâ·Ñ¿Î³ÌÍƼö£¡ | ³õÈý | ³õÈýÃâ·Ñ¿Î³ÌÍƼö£¡ |
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÓÃʳ´×³ýȥůˮƿÖеı¡²ãË®¹¸ | |
B£® | ÓÃÃ×ÌÀ¼ìÑéʳÑÎÖÐÊÇ·ñº¬µâËá¼Ø£¨KIO3£© | |
C£® | Ò½Óþƾ«µÄŨ¶Èͨ³£Îª75%£¬¿ÉÓÃÓÚɱ¾úÏû¶¾ | |
D£® | ÓÃ×ÆÉÕ²¢ÎÅÆøζµÄ·½·¨Çø±ð´¿ÃÞÖ¯ÎïºÍ´¿Ñòë֯Îï |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ±£³ÖζȺÍÈÝÆ÷ѹǿ²»±ä£¬³äÈë1mol NH3£¨g£© | |
B£® | ±£³ÖζȺÍÈÝÆ÷Ìå»ý²»±ä£¬³äÈë1mol NH3£¨g£© | |
C£® | ±£³ÖζȺÍÈÝÆ÷ѹǿ²»±ä£¬³äÈë1mol N2£¨g£© | |
D£® | ±£³ÖζȺÍÈÝÆ÷Ìå»ý²»±ä£¬³äÈë1mol H2£¨g£© |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÏòNaAlO2ÈÜÒºÖÐͨÈë¹ýÁ¿µÄCO2£º2AlO2-+CO2+3H2O¨T2Al£¨OH£©3¡ý+CO32- | |
B£® | NH4HCO3ÈÜÒºÖмÓÈë¹ýÁ¿ÇâÑõ»¯ÄÆÈÜÒº£ºNH4++OH-¨TNH3£®H2O | |
C£® | AlCl3ÈÜÒºÖеμӹýÁ¿°±Ë®£ºAl3++3NH3£®H2O¨T3NH4++Al£¨OH£©3¡ý | |
D£® | ´ÅÐÔÑõ»¯Ìú£¨Fe3O4£©ÈÜÓÚÏ¡ÏõËá3Fe2++4H++NO3-¨T3Fe3++NO¡ü+2H2O |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | ÉÙÁ¿°×Á×Öü´æÓÚË®ÖУ¬ÇиîʱҪÔÚˮϽøÐÐ | |
B£® | ÒºäåÖ±½Ó±£´æÓÚÄ¥¿Ú²£Á§ÈûµÄϸ¿Ú×ØÉ«Æ¿ÖÐ | |
C£® | KOHÈÜÒº´æ·ÅÔÚÄ¥¿Ú²£Á§ÈûµÄ¹ã¿ÚÆ¿ÖÐ | |
D£® | ÉÙÁ¿½ðÊôÄÆ´æ·ÅÔÚÎÞË®ÒÒ´¼ÖÐ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | H2µÄȼÉÕÈÈ£¨¡÷H£©ÊÇ285.8kJ•mol-1 | |
B£® | ·´Ó¦2H2O£¨g£©=2H2£¨g£©+O2£¨g£©H2µÄìʱ䣨¡÷H£©ÊÇ571.6kJ•mol-1 | |
C£® | ·´Ó¦2H2O£¨l£©=2H2£¨g£©+O2£¨g£©Ö»ÄÜÔÚµç½âÌõ¼þϽøÐÐ | |
D£® | ·´Ó¦2H2O£¨l£©=2H2£¨g£©+O2£¨g£©ÔÚÒ»¶¨Ìõ¼þÏ¿ÉÒÔ×Ô·¢½øÐÐ |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¶àÑ¡Ìâ
A£® | ³£Î³£Ñ¹Ï£¬18 gË®Öк¬ÓеÄË®·Ö×ÓÊýĿΪNA | |
B£® | ³£Î³£Ñ¹Ï£¬1.06g Na2CO3º¬ÓеÄNa+Àë×ÓÊýΪ0.02 NA | |
C£® | ͨ³£×´¿öÏ£¬NA ¸öCO2·Ö×ÓÕ¼ÓеÄÌå»ýΪ22.4L | |
D£® | ÎïÖʵÄÁ¿Å¨¶ÈΪ0.5mol/LµÄMgCl2ÈÜÒºÖУ¬º¬ÓÐCl-¸öÊýΪNA |
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º½â´ðÌâ
²é¿´´ð°¸ºÍ½âÎö>>
¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£ºÑ¡ÔñÌâ
A£® | 0.15 mol CuO | B£® | 0.1 mol CuCO3 | ||
C£® | 0.075mol Cu£¨OH£©2 | D£® | 0.05 mol Cu2£¨OH£©2CO3 |
²é¿´´ð°¸ºÍ½âÎö>>
°Ù¶ÈÖÂÐÅ - Á·Ï°²áÁбí - ÊÔÌâÁбí
ºþ±±Ê¡»¥ÁªÍøÎ¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨Æ½Ì¨ | ÍøÉÏÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | µçÐÅթƾٱ¨×¨Çø | ÉæÀúÊ·ÐéÎÞÖ÷ÒåÓк¦ÐÅÏ¢¾Ù±¨×¨Çø | ÉæÆóÇÖȨ¾Ù±¨×¨Çø
Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com