£¨2012?¼ªÊ×ÊÐÄ£Ä⣩СÇàͬѧΪÁËÖÆ×÷Ò¶ÂöÊéÇ©£¬´òËãÅäÖÆ125g10%µÄNaOHÈÜÒº£®
£¨l£©Ð¡ÇàÐèÒª³ÆÈ¡NaOHµÄÖÊÁ¿ÊǶàÉÙ¿Ë£¿
£¨2£©Ð¡Çàͬѧ½«Ï´¾»µÄÊ÷Ò¶·ÅÔÚÅäÖƺõÄÈÜÒºÖÐÖó·ÐºóÈ¡³ö£¬ÈÜÒºµÄÖÊÁ¿¼õÉÙÁË25g£¬ÈÜÖÊÖÊÁ¿·ÖÊýÒ²ÓÐËù¼õС£®ÎªÁ˲ⶨʣÏÂÈÜÒºÖÐNaOHµÄÖÊÁ¿·ÖÊý£¬Ð¡ÇàͬѧÏòÈÜÒºÖÐÖð½¥¼ÓÈë7.3%µÄÏ¡ÑÎËᣬµ±ÈÜÒºPH=7ʱ£¬ÏûºÄÑÎËá100g£®¼ÆË㣺
¢ÙÉú³ÉNaClµÄÖÊÁ¿ÊǶàÉÙ¿Ë£¿
¢ÚÊ£ÏÂÈÜÒºÖÐNaOHµÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿
·ÖÎö£º£¨1£©ÀûÓÃÈÜÒºÖÐÈÜÖÊÖÊÁ¿=ÈÜÒºÖÊÁ¿¡ÁÈÜÒºµÄÈÜÖÊÖÊÁ¿·ÖÊý£¬¼ÆËã125g10%µÄNaOHÈÜÒºÖÐËùº¬ÈÜÖÊÇâÑõ»¯ÄƵÄÖÊÁ¿£»
£¨2£©¸ù¾ÝÇâÑõ»¯ÄÆÓëÑÎËá·´Ó¦µÄ»¯Ñ§·½³Ìʽ£¬ÓɼÓÈëÑÎËáÖÐHClµÄÖÊÁ¿¼ÆËãÏûºÄÇâÑõ»¯ÄƵÄÖÊÁ¿ºÍÉú³ÉÂÈ»¯ÄƵÄÖÊÁ¿£¬ÇâÑõ»¯ÄÆÓëÊ£ÏÂÈÜÒºµÄÖÊÁ¿±È¿É¼ÆËãÊ£ÏÂÈÜÒºÖÐNaOHµÄÖÊÁ¿·ÖÊý£®
½â´ð£º½â£º£¨1£©125g10%µÄNaOHÈÜÒºÖÐËùº¬ÈÜÖÊÇâÑõ»¯ÄƵÄÖÊÁ¿=125g¡Á10%=12.5g£®
£¨2£©ÉèÉú³ÉÂÈ»¯ÄƵÄÖÊÁ¿Îªx£¬²Î¼Ó·´Ó¦µÄÇâÑõ»¯ÄƵÄÖÊÁ¿Îªy£®
NaOH+HCl¨TH2O+NaCl
40   36.5     58.5
y  100g¡Á7.3%    x
40
y
=
36.5
100g¡Á7.3%

 y=8g
36.5
100g¡Á7.3%
=
58.5
x

 x=11.7g
ÇâÑõ»¯ÄƵÄÖÊÁ¿·ÖÊý=
8g
125g-25g
¡Á100%=8%
´ð£º£¨1£©Ð¡ÇàÐèÒª³ÆÈ¡NaOHµÄÖÊÁ¿12.5g£»£¨2£©¢ÙÉú³ÉNaClµÄÖÊÁ¿11.7g£»¢ÚÊ£ÏÂÈÜÒºÖÐNaOHµÄÖÊÁ¿·ÖÊýΪ8%£®
µãÆÀ£º¸ù¾Ý»¯Ñ§·½³Ìʽ½øÐмÆËãʱ£¬ËùʹÓõľùΪ´¿¾»ÎïµÄÖÊÁ¿£¬²»Òª°ÑÏ¡ÑÎËáÖÊÁ¿100gµ±×÷HClÖÊÁ¿´úÈë¼ÆË㣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2012?¼ªÊ×ÊÐÄ£Ä⣩ÓÐÏÂÁм¸ÖÖÎïÖÊ£ºa£®ÑÎËá¡¡b£®ÁòËá¡¡c£®Êìʯ»Ò¡¡d£®ÆÏÌÑÌÇ¡¡e£®´¿¼î¡¡f£®Ê³ÑÎÇëÑ¡ÔñºÏÊʵıêºÅ£¨a¡«f£©Ìî¿Õ£¨²»µÃÖظ´£©
£¨1£©ÉÙÁ¿´æÓÚθҺÖаïÖúÏû»¯µÄÊÇ
a
a
£»
£¨2£©³£ÓýµµÍÍÁÈÀËáÐÔµÄÊÇ
c
c
£»
£¨3£©ÔÚÈÕ³£Éú»îÖÐÓÃ×öµ÷ζ¼ÁµÄÊÇ
f
f
£»
£¨4£©ÄÜÌṩÈËÌå»î¶¯ËùÐèÄÜÁ¿µÄÊÇ
d
d
£»
£¨5£©ÓÃÀ´Çå³ýÌúÐâµÄÎïÖÊ
b
b
£»
£¨6£©×öÂøͷʱÓÃÓÚ³ýÈ¥ÃæÍÅ·¢½ÍÉú³ÉµÄËáµÄÊÇ
e
e
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2012?¼ªÊ×ÊÐÄ£Ä⣩ÎïÖÊȼÉÕÐèÒªµÄÈý¸öÌõ¼þÊÇ£ºÓпÉȼÎï¡¢¿ÉȼÎïÓëÑõÆø½Ó´¥ºÍ
ζȴﵽ¿ÉȼÎïµÄ×Å»ðµã
ζȴﵽ¿ÉȼÎïµÄ×Å»ðµã
£®Å©´å·¿ÎÝÆðͨ³£ÓÃË®½½Ãð£¬Æä¶ÔÓ¦µÄÃð»ðÔ­ÀíÊÇ£º
ʹζȽµµ½¿ÉȼÎïµÄ×Å»ðµãÒÔÏÂ
ʹζȽµµ½¿ÉȼÎïµÄ×Å»ðµãÒÔÏÂ
£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2012?¼ªÊ×ÊÐÄ£Ä⣩ÔÚ±ù¶³ÌìÆø£¬ÈËÃdz£³£ÒªÊ¹ÓÃһЩÈÚÑ©¼Á£®ÆäÖÐÒ»ÖÖÈÚѩЧ¹ûºÃ¡¢ÎÞÎÛȾµÄÈÚÑ©¼Á£¬ËüµÄÖ÷Òª³É·ÝÊÇ´×Ëá¼Ø£¨CH3COOK£©£®Çë»Ø´ð£º
£¨1£©´×Ëá¼ØÖÐC¡¢H¡¢OÔªËصÄÖÊÁ¿±ÈΪ
24£º3£º32
24£º3£º32
£»
£¨2£©´×Ëá¼ØµÄÏà¶Ô·Ö×ÓÖÊÁ¿Îª
98
98
£»
£¨3£©¼ØÔªËصÄÖÊÁ¿·ÖÊýΪ
39.8%
39.8%
£¨±£ÁôһλСÊý£©£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

£¨2012?¼ªÊ×ÊÐÄ£Ä⣩д³öÏÂÁл¯Ñ§·½³Ìʽ£®
£¨1£©ºìÁ×ÔÚÑõÆøÖÐȼÉÕ£º
4P+5O2
 µãȼ 
.
 
2P2O5
4P+5O2
 µãȼ 
.
 
2P2O5
£®
£¨2£©ÓÃСËÕ´òÖÎÁÆθËá¹ý¶à£º
NaHCO3+HCl¨TNaCl+H2O+CO2¡ü
NaHCO3+HCl¨TNaCl+H2O+CO2¡ü
£®
£¨3£©ÓÃÒ»Ñõ»¯Ì¼Óë³àÌú¿ó£¨Ö÷Òª³É·ÖÊÇFe2O3£©·´Ó¦Á¶Ìú£º
Fe2O3+3CO
 ¸ßΠ
.
 
2Fe+3CO2
Fe2O3+3CO
 ¸ßΠ
.
 
2Fe+3CO2
£®

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸