ÌâÄ¿ÄÚÈÝ
£¨1£©ÊµÑéÊÒÓÃ̼ËáÄƾ§Ì壬ÅäÖÆ100mL 0.1mol/LµÄ̼ËáÄÆÈÜÒº£¬ÕýÈ·µÄ²Ù×÷˳ÐòÊÇ£º¢Ù¼ÆËãËùÓÃ̼ËáÄƾ§ÌåµÄÖÊÁ¿Îª
¢Ú½«³ÆºÃµÄ̼ËáÄƾ§Ìå·ÅÔÚСÉÕ±ÖУ¬¼Ó30mLË®½Á°èÈܽ⣬²¢ÀäÈ´ÖÁÊÒÎÂ
¢ÛÓÃÌìƽ³ÆÈ¡ËùÐè̼ËáÄƾ§Ìå
¢Ü½«ÈÜҺתÈëÈÝÁ¿Æ¿ÖÐ
¢Ý¸ÄÓýºÍ·µÎ¹ÜСÐļÓË®ÖÁ¿Ì¶È
¢Þ¼ÌÐøÏòÈÝÁ¿Æ¿ÖмÓË®ÖÁÒ³Ãæ½Ó½ü¿Ì¶ÈÏß2-3ÀåÃ×´¦
¢ßÓÃÕôÁóˮϴµÓÉÕ±2-3´Î£¬Ï´µÓҺȫ²¿×ªÈëÈÝÁ¿Æ¿ÖÐ
¢à¸ÇÉÏÆ¿Èû£¬Õñµ´Ò¡ÔÈ£®
£¨2£©ÔÚÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈµÄÇâÑõ»¯ÄÆÈÜҺʱ£¬Èô³ÆÈ¡µÄ¹ÌÌåÇâÑõ»¯ÄƳ±½â£¬ÔòÈÜÒºµÄŨ¶È
·ÖÎö£º£¨1£©¸ù¾ÝÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈµÄÈÜÒºµÄ²Ù×÷²½Öè½øÐÐÅÅÐò£»
ÒÀ¾Ým=n¡ÁM=C¡ÁV¡ÁM¼ÆËãËùÐèÒªµÄ̼ËáÄƾ§ÌåµÄÖÊÁ¿£»
£¨2£©¸ù¾Ýc=
½øÐÐÎó²î·ÖÎö£¬Îó²î·ÖÎö¹Ø¼üÊÇ·ÖÇåÅäÖƹý³ÌÖÐÒýÆðnºÍVÔõÑùµÄ±ä»¯£ºÈôn±ÈÀíÂÛֵС£¬»òV±ÈÀíÂÛÖµ´óʱ£¬¶¼»áʹËùÅäÈÜҺŨ¶ÈƫС£»Èôn±ÈÀíÂÛÖµ´ó£¬»òV±ÈÀíÂÛֵСʱ£¬¶¼»áʹËùÅäÈÜҺŨ¶ÈÆ«´ó¾Ý´Ë½â´ð£®
ÒÀ¾Ým=n¡ÁM=C¡ÁV¡ÁM¼ÆËãËùÐèÒªµÄ̼ËáÄƾ§ÌåµÄÖÊÁ¿£»
£¨2£©¸ù¾Ýc=
n |
V |
½â´ð£º½â£º£¨1£©100mL 0.1mol/LµÄ̼ËáÄÆÈÜÒºµÄ²½ÖèΪ£º¼ÆËã¡¢³ÆÁ¿¡¢Èܽ⡢ÀäÈ´¡¢×ªÒÆ¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢µ¹³öÈÜÒºÌù±êÇ©£¬ËùÒÔÕýÈ·µÄ˳ÐòΪ£º¢Ù¢Û¢Ú¢Ü¢ß¢Þ¢Ý¢à£¬
¹Ê´ð°¸Îª£º¢Ù¢Û¢Ú¢Ü¢ß¢Þ¢Ý¢à£»
100mL 0.1mol/LµÄ̼ËáÄÆÈÜҺ̼ËáÄƵÄÖÊÁ¿Îª£ºm=C¡ÁV¡ÁM=0.1mol/L¡Á0.1L¡Á286g/mol¡Ö2.9g£¬
¹Ê´ð°¸Îª£º2.9g£»
£¨2£©¸ù¾ÝŨ¶È¹«Ê½C£¨NaOH£©=
¿ÉÖª£º
Èô³ÆÈ¡µÄ¹ÌÌåÇâÑõ»¯ÄƳ±½â£¬ÏàͬÖÊÁ¿µÄ¹ÌÌåÖк¬ÓеÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
£¬ÈÜҺŨ¶ÈƫС£»
ÈôÉձûÓÐÏ´µÓ£¬ÔòתÒƵ½ÈÝÁ¿Æ¿µÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
£¬ÈÜҺŨ¶ÈƫС£»
ÈôתÒÆÈÜҺʱ£¬Óв¿·ÖÈÜÒº½¦³ö£¬ÔòתÒƵ½ÈÝÁ¿Æ¿µÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
£¬ÈÜҺŨ¶ÈƫС£»
¶¨ÈÝʱÈô¸©Êӿ̶ÈÏߣ¬µ¼Ö¶¨ÈÝʱ¼ÓÈëµÄÕôÁóË®µÄÌå»ýƫС£¬ÅäÖõÄÈÜÒºµÄÌå»ýƫС£¬¸ù¾ÝC£¨NaOH£©=
£¬Å¨¶ÈÆ«´ó£»
ÈôÑöÊӿ̶ÈÏߣ¬µ¼Ö¶¨ÈÝʱ¼ÓÈëµÄÕôÁóË®µÄÌå»ýÆ«´ó£¬ÅäÖõÄÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾ÝC£¨NaOH£©=
£¬Å¨¶ÈƫС£»
Èô¶¨ÈÝʱ¼ÓË®³¬¹ý¿Ì¶ÈÏߣ¬ÅäÖõÄÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾ÝC£¨NaOH£©=
£¬Å¨¶ÈƫС£®
¹Ê´ð°¸Îª£ºÆ«Ð¡¡¢Æ«Ð¡¡¢Æ«Ð¡¡¢Æ«´ó¡¢Æ«Ð¡¡¢Æ«Ð¡£®
¹Ê´ð°¸Îª£º¢Ù¢Û¢Ú¢Ü¢ß¢Þ¢Ý¢à£»
100mL 0.1mol/LµÄ̼ËáÄÆÈÜҺ̼ËáÄƵÄÖÊÁ¿Îª£ºm=C¡ÁV¡ÁM=0.1mol/L¡Á0.1L¡Á286g/mol¡Ö2.9g£¬
¹Ê´ð°¸Îª£º2.9g£»
£¨2£©¸ù¾ÝŨ¶È¹«Ê½C£¨NaOH£©=
n(NaOH) |
V |
Èô³ÆÈ¡µÄ¹ÌÌåÇâÑõ»¯ÄƳ±½â£¬ÏàͬÖÊÁ¿µÄ¹ÌÌåÖк¬ÓеÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
ÈôÉձûÓÐÏ´µÓ£¬ÔòתÒƵ½ÈÝÁ¿Æ¿µÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
ÈôתÒÆÈÜҺʱ£¬Óв¿·ÖÈÜÒº½¦³ö£¬ÔòתÒƵ½ÈÝÁ¿Æ¿µÄÇâÑõ»¯ÄƵÄÎïÖʵÄÁ¿¼õС£¬¼´n£¨NaOH£©Æ«Ð¡£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
¶¨ÈÝʱÈô¸©Êӿ̶ÈÏߣ¬µ¼Ö¶¨ÈÝʱ¼ÓÈëµÄÕôÁóË®µÄÌå»ýƫС£¬ÅäÖõÄÈÜÒºµÄÌå»ýƫС£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
ÈôÑöÊӿ̶ÈÏߣ¬µ¼Ö¶¨ÈÝʱ¼ÓÈëµÄÕôÁóË®µÄÌå»ýÆ«´ó£¬ÅäÖõÄÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
Èô¶¨ÈÝʱ¼ÓË®³¬¹ý¿Ì¶ÈÏߣ¬ÅäÖõÄÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾ÝC£¨NaOH£©=
n(NaOH) |
V |
¹Ê´ð°¸Îª£ºÆ«Ð¡¡¢Æ«Ð¡¡¢Æ«Ð¡¡¢Æ«´ó¡¢Æ«Ð¡¡¢Æ«Ð¡£®
µãÆÀ£ºÅäÖÃÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈµÄÈÜÒºÊǸßÖл¯Ñ§ºÜÖØÒªµÄʵÑ飬²àÖØÅàÑøѧÉúÂ߼˼άÄÜÁ¦ºÍÑϽ÷µÄ¹æ·¶ÊµÑé²Ù×÷ÄÜÁ¦£¬·ÖÎöÎÊÌâ½â¾öÎÊÌâµÄÄÜÁ¦£¬ÌâÄ¿ÄѶÈÖеȣ¬×¢ÒâÎó²î·ÖÎöÊDZ¾ÌâµÄÄѵ㣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿