ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿ÑÇÏõËáÄÆ(NaNO2)ÊÇÒ»ÖÖ¹¤ÒµÑΣ¬ÊµÑéÊÒ¿ÉÓÃÈçÏÂ×°ÖÃ(ÂÔÈ¥²¿·Ö¼Ð³ÖÒÇÆ÷)ÖƱ¸¡£
ÒÑÖª£º¢Ù2NO+Na2O2=2NaNO2£» ¢Ú3NaNO2+3HCl=3NaCl+HNO3+2NO¡ü+H2O£»¢ÛËáÐÔÌõ¼þÏ£¬NOºÍNO2¶¼ÄÜÓëMnO4-·´Ó¦Éú³ÉNO3-ºÍMn2+£»Na2O2ÄÜʹËáÐÔ¸ßÃÌËá¼ØÈÜÒºÍÊÉ«¡£
£¨1£©¼ÓÈÈ×°ÖÃAÇ°£¬ÏÈͨһ¶Îʱ¼äN2£¬Ä¿µÄÊÇ_______________¡£
£¨2£©×°ÖÃAÖз¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ__________________________________¡£ÊµÑé½áÊøºó£¬½«BÆ¿ÖеÄÈÜÒº¾Õô·¢Å¨Ëõ¡¢__________(Ìî²Ù×÷Ãû³Æ)¡¢¹ýÂË¿É»ñµÃCuSO4¡¤5H2O¡£
£¨3£©ÒÇÆ÷CµÄÃû³ÆΪ______________£¬ÆäÖÐÊ¢·ÅµÄҩƷΪ ____________(ÌîÃû³Æ)¡£
£¨4£©³ä·Ö·´Ó¦ºó£¬¼ìÑé×°ÖÃDÖвúÎïµÄ·½·¨ÊÇ£ºÈ¡²úÎïÉÙÐíÖÃÓÚÊÔ¹ÜÖУ¬________________£¬Ôò²úÎïÊÇNaNO2(×¢Ã÷ÊÔ¼Á¡¢ÏÖÏó)¡£
£¨5£©Îª²â¶¨ÑÇÏõËáÄƵĺ¬Á¿£¬³ÆÈ¡4.000gÑùÆ·ÈÜÓÚË®Åä³É250mLÈÜÒº£¬È¡25.00mLÈÜÒºÓÚ׶ÐÎÆ¿ÖУ¬ÓÃ0.1000mol¡¤L-1ËáÐÔKMnO4ÈÜÒº½øÐе樣¬ÊµÑéËùµÃÊý¾ÝÈçϱíËùʾ£º
¢ÙµÚÒ»×éʵÑéÊý¾Ý³öÏÖÒì³££¬Ôì³ÉÕâÖÖÒì³£µÄÔÒò¿ÉÄÜÊÇ_________(Ìî´úºÅ)¡£
a£®ËáʽµÎ¶¨¹ÜÓÃÕôÁóˮϴ¾»ºóδÓñê×¼ÒºÈóÏ´
b£®×¶ÐÎÆ¿Ï´¾»ºóδ¸ÉÔï
c£®µÎ¶¨ÖÕµãʱÑöÊÓ¶ÁÊý
¢Ú¸ù¾Ý±íÖÐÊý¾Ý£¬¼ÆËãËùµÃ¹ÌÌåÖÐÑÇÏõËáÄƵÄÖÊÁ¿·ÖÊý__________¡£
¡¾´ð°¸¡¿ Åųý×°ÖÃÖеĿÕÆø ÀäÈ´½á¾§ ¸ÉÔï¹Ü ¼îʯ»Ò ¼ÓÈëÏ¡ÁòËᣨ»òÏ¡ÑÎËᣩ£¬ÈÜÒºÖÐÓÐÆøÅݲúÉúÇÒÔÚÊÔ¹ÜÉÏ·½±ä³Éºì×ØÉ«ÆøÌå ac 86.25%
¡¾½âÎö¡¿(1)ÖƱ¸ÑÇÏõËáÄÆÐèÒªÒ»Ñõ»¯µªºÍ¹ýÑõ»¯ÄÆ·´Ó¦Éú³É£¬¹ýÑõ»¯ÄƺͶþÑõ»¯Ì¼¡¢Ë®ÕôÆø·¢Éú·´Ó¦£¬ËùÒÔÖƱ¸µÄÒ»Ñõ»¯µªÆøÌå±ØÐë´¿¾»¸ÉÔװÖÃÖÐÎÞ¿ÕÆø´æÔÚ£¬¼ÓÈÈAÇ°£¬ÏÈͨһ¶Îʱ¼äN2£¬Ä¿µÄÊÇ°Ñ×°ÖÃÖеĿÕÆø¸Ï¾»£¬±ÜÃâÉú³ÉµÄÑÇÏõËáÄÆ»ìÈëÔÓÖÊ£»
(2)×°ÖÃAÖз¢Éú·´Ó¦ÊÇŨÏõËáºÍ̼¼ÓÈÈ·´Ó¦Éú³É¶þÑõ»¯Ì¼¡¢¶þÑõ»¯µªºÍË®£¬·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ£ºC+4HNO3(Ũ)CO2¡ü+4NO2¡ü+2H2O£¬×°ÖÃAÖÐÉú³ÉµÄ¶þÑõ»¯µª½øÈë×°ÖÃBÉú³ÉÏõËᣬÑõ»¯ÍÉú³ÉÏõËáÍ¡¢ÁòËáÍ£¬Õô·¢Å¨Ëõ¹ý³ÌÏõËáÊÇÒ×»Ó·¢ÐÔµÄËᣬËùÒÔÀäÈ´½á¾§µÃµ½¾§ÌåΪÁòËá;§Ì壻
(3)ÖƱ¸ÑÇÏõËáÄÆÐèÒªÒ»Ñõ»¯µªºÍ¹ýÑõ»¯ÄÆ·´Ó¦Éú³É£¬¹ýÑõ»¯ÄƺͶþÑõ»¯Ì¼¡¢Ë®ÕôÆø·¢Éú·´Ó¦£¬ËùÒÔÖƱ¸µÄÒ»Ñõ»¯µªÆøÌå±ØÐë´¿¾»¸ÉÔÒÇÆ÷CΪ¸ÉÔï¹Ü£¬ÀûÓÃÆäÖеļîʯ»ÒÓÃÀ´¸ÉÔïÒ»Ñõ»¯µªÆøÌ壻
(4)3NaNO2+3HCl=3NaCl+HNO3+2NO¡ü+H2O£¬·´Ó¦Éú³ÉµÄÒ»Ñõ»¯µªÓöµ½¿ÕÆø»áÉú³Éºì×ØÉ«ÆøÌå¶þÑõ»¯µª£¬³ä·Ö·´Ó¦ºó£¬¼ìÑé×°ÖÃDÖвúÎïµÄ·½·¨ÊÇ£ºÈ¡²úÎïÉÙÐíÖÃÓÚÊÔ¹ÜÖмÓÈëÏ¡ÁòËáÈÜÒºÖÐÓÐÆøÅݲúÉúÇÒÔÚÊԹܿÚÉÏ·½³öÏÖºì×ØÉ«ÆøÌ壬֤Ã÷²úÎïÊÇNaNO2£»
(5)¢ÙµÚÒ»×éʵÑéÊý¾ÝÏûºÄµÄËáÐÔ¸ßÃÌËá¼ØÈÜÒºÌå»ýÆ«´ó£¬»áµ¼Ö²âÁ¿½á¹ûÆ«¸ß£»a£®ËáʽµÎ¶¨¹ÜÓÃÕôÁóˮϴ¾»ºóδÓñê×¼ÒºÈóÏ´£¬µ¼Ö±ê×¼Òº±»Ï¡ÊÍ£¬µÎ¶¨¹ý³ÌÖÐÏûºÄµÄ±ê×¼ÒºÌå»ý»áÆ«´ó£¬¹ÊaÕýÈ·£»b£®×¶ÐÎÆ¿²»ÐèÒª¸ÉÔËùÒÔ׶ÐÎÆ¿Ï´¾»ºóδ¸ÉÔ²»Ó°Ïì²â¶¨½á¹û£¬¹Êb´íÎó£»c£®µÎ¶¨ÖÕÁËÑöÊÓ¶ÁÊý£¬µ¼Ö¶ÁÊýÆ«´ó£¬¼ÆËã³öµÄ±ê×¼ÒºÌå»ýÆ«´ó£¬¹ÊcÕýÈ·£»¹Ê´ð°¸Îªac£»
¢ÚÓÉÓÚµÚÒ»×éÊý¾ÝÆ«¸ß£¬Ó¦¸ÃÉáÆú£»ÆäËüÈý×éÏûºÄ±ê׼Һƽ¾ùÌå»ýΪ£º mL=20.00mL£¬25mLÑùÆ·ÏûºÄ¸ßÃÌËá¼ØµÄÎïÖʵÄÁ¿Îª0.1000mol/L¡Á0.02L=0.002mol£¬Ôò250mLÑùÆ·ÈÜÒº»áÏûºÄ¸ßÃÌËá¼ØµÄÎïÖʵÄÁ¿Îª0.002mol¡Á
=0.02mol£¬¸ù¾Ý»¯ºÏ¼Û±ä»¯¿ÉµÃ·´Ó¦¹Øϵʽ£º2MnO4-¡«5NO2-£¬Ôò4.000gÑùÆ·Öк¬ÓÐÑÇÏõËáÄƵÄÎïÖʵÄÁ¿Îª0.02mol¡Á
=0.05mol£¬ÖÊÁ¿Îª69g/mol¡Á0.05mol=3.45g£¬ËùÒÔ·´Ó¦ºóµÄ¹ÌÌåÖÐÑÇÏõËáÄƵÄÖÊÁ¿·ÖÊýΪ£º
¡Á100%=86.25%¡£
![](http://thumb2018.1010pic.com/images/loading.gif)