ÌâÄ¿ÄÚÈÝ
£¨1£©ÓÉÁòËá¼Ø¡¢ÁòËáÂÁºÍÁòËá×é³ÉµÄ»ìºÏÈÜÒºÖУ¬c£¨H+£©=0.1 mol?L-1£¬c£¨Al3+£©=0.4 mol?L-1£¬c£¨SO
£©=0.8 mol?L-1£¬Ôòc£¨K+£©Îª
£¨2£©±ê×¼×´¿öÏ£¬½«33.6LµÄNH3ÈܽâÓÚË®Åä³É2LµÄÈÜÒº£¬ÔòÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈΪ
£¨3£©±ê×¼×´¿öÏ£¬ÈôaL NH3Öк¬ÓеÄÇâÔ×ÓÊýΪb£¬Ôò°¢·ü¼ÓµÂÂÞ³£ÊýNA=
mol-1
mol-1£¨Óú¬¡°a¡±¡¢¡°b¡±µÄʽ×ÓÀ´±íʾ£©
2- 4 |
0.3mol/L
0.3mol/L
£¨2£©±ê×¼×´¿öÏ£¬½«33.6LµÄNH3ÈܽâÓÚË®Åä³É2LµÄÈÜÒº£¬ÔòÈÜÒºµÄÎïÖʵÄÁ¿Å¨¶ÈΪ
0.75
0.75
mol/L£¨3£©±ê×¼×´¿öÏ£¬ÈôaL NH3Öк¬ÓеÄÇâÔ×ÓÊýΪb£¬Ôò°¢·ü¼ÓµÂÂÞ³£ÊýNA=
22.4b |
3a |
22.4b |
3a |
·ÖÎö£º£¨1£©¸ù¾ÝµçºÉÊغãÓÐc£¨H+£©+3c£¨Al3+£©+c£¨K+£©=2c£¨SO
£©£¬¾Ý´Ë¼ÆË㣻
£¨2£©¸ù¾Ýn=
¼ÆËã33.6LµÄNH3µÄÎïÖʵÄÁ¿£¬ÔÙ¸ù¾Ýc=
¼ÆË㰱ˮµÄÎïÖʵÄÁ¿Å¨¶È£»
£¨3£©¸ù¾Ýn=
¼ÆËãaLµÄNH3µÄÎïÖʵÄÁ¿£¬½ø¶ø¼ÆËãHÔ×ÓµÄÎïÖʵÄÁ¿£¬ÔÙ¸ù¾ÝN=nNA¼ÆËã°¢·üÙ¤µÂÂÞ³£Êý£®
2- 4 |
£¨2£©¸ù¾Ýn=
V |
Vm |
n |
V |
£¨3£©¸ù¾Ýn=
V |
Vm |
½â´ð£º½â£º£¨1£©¸ù¾ÝµçºÉÊغãÓÐc£¨H+£©+3c£¨Al3+£©+c£¨K+£©=2c£¨SO
£©£¬¼´£º
0.1 mol?L-1+3¡Á0.4 mol?L-1+c£¨K+£©=2¡Á0.8 mol?L-1£¬Ôòc£¨K+£©=0.3mol/L£¬
¹Ê´ð°¸Îª£º0.3mol/L£»
£¨2£©±ê×¼×´¿öÏ£¬33.6LµÄNH3µÄÎïÖʵÄÁ¿Îª
=1.5mol£¬ÈÜÓÚË®Åä³É2LµÄÈÜÒº£¬¹Ê°±Ë®µÄÎïÖʵÄÁ¿Å¨¶ÈΪ
=0.75mol/L£¬
¹Ê´ð°¸Îª£º0.75£»
£¨3£©±ê×¼×´¿öÏ£¬ÈôaL NH3µÄÎïÖʵÄÁ¿Îª
=
mol£¬º¬ÓеÄÇâÔ×ÓÊýΪb£¬¹Ê
mol¡Á3¡ÁNA=b£¬½âµÃNA=
mol-1£¬
¹Ê´ð°¸Îª£º
mol-1£®
2- 4 |
0.1 mol?L-1+3¡Á0.4 mol?L-1+c£¨K+£©=2¡Á0.8 mol?L-1£¬Ôòc£¨K+£©=0.3mol/L£¬
¹Ê´ð°¸Îª£º0.3mol/L£»
£¨2£©±ê×¼×´¿öÏ£¬33.6LµÄNH3µÄÎïÖʵÄÁ¿Îª
33.6L |
22.4L/mol |
1.5mol |
2L |
¹Ê´ð°¸Îª£º0.75£»
£¨3£©±ê×¼×´¿öÏ£¬ÈôaL NH3µÄÎïÖʵÄÁ¿Îª
aL |
22.4L/mol |
a |
22.4 |
a |
22.4 |
22.4b |
3a |
¹Ê´ð°¸Îª£º
22.4b |
3a |
µãÆÀ£º±¾Ì⿼²éÎïÖʵÄÁ¿Å¨¶ÈµÄÓйؼÆËã¡¢°¢·üÙ¤µÂÂÞ³£ÊýµÄÓйؼÆËãµÈ£¬ÄѶȲ»´ó£¬×¢Ò⣨1£©Öеç½âÖÊ»ìºÏÈÜÒºÖÐÀë×ÓŨ¶È¾³£ÀûÓõçºÉÊغã½øÐмÆË㣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿