ÌâÄ¿ÄÚÈÝ
ʵÑéÊÒ³£ÓÃŨÑÎËáµÄÖÊÁ¿·ÖÊýΪ36.5%£¬ÃܶÈΪ1.20g/cm-3£¬ÅäÖÆ100mL 3.00mol/LµÄÏ¡ÑÎËᣬÐèÒÔÉÏŨÑÎËá
£¨1£©ÔÚÅäÖÆÈÜҺʱʵÑéÊÒÓ¦ÌṩÉÕ±¡¢Á¿Í²¡¢100mlÈÝÁ¿Æ¿¡¢
£¨2£©Ê¹ÓÃÈÝÁ¿Æ¿Ç°±ØÐë½øÐеÄÒ»²½²Ù×÷ÊÇ
£¨3£©ÓÃŨÑÎËáÅäÖƸÃÏ¡ÑÎËáÐèÒªÒÔÏÂÄÄЩ²½Ö裨°´²Ù×÷˳ÐòÌîдÐòºÅ£©£º
¢Ù¼ÆËã ¢Ú£®×°Æ¿ ¢Û£®ÓÃ50mLÁ¿Í²Á¿È¡Ò»¶¨Ìå»ýµÄŨÑÎËá
¢ÜÏ´µÓ ¢Ý£®ÒÆÒº ¢Þ£®Ï¡ÊÍ ¢ß£®¶¨ÈÝ ¢à£®Ò¡ÔÈ ¢á£®Õñµ´
£¨4£©ÔÚÅäÖƹý³ÌÖÐÆäËü²Ù×÷¶¼ÕýÈ·£¬ÏÂÁвÙ×÷»áÒýÆðËùÅäÈÜҺŨ¶ÈƫСµÄÊÇ
¢ÙûÓÐÏ´µÓÉÕ±ºÍ²£Á§°ô£»¢ÚÈÝÁ¿Æ¿Öк¬ÓÐÉÙÁ¿ÕôÁóË®£»¢Û¶¨ÈÝʱ¸©ÊÓ±êÏߣ»¢Ü¶¨ÈÝʱÑöÊÓ±êÏߣ»
£¨5£©MnO2 ºÍŨÑÎËáµÄ·´Ó¦ÖУ¨ MnO2+4HCl£¨Å¨£©
MnCl2+Cl2¡ü+2H2O £©£¬Èç¹ûÓÐ34.8g MnO2 ±»»¹Ô£¬±»Ñõ»¯µÄHClÓÐ
25ml
25ml
£®£¨1£©ÔÚÅäÖÆÈÜҺʱʵÑéÊÒÓ¦ÌṩÉÕ±¡¢Á¿Í²¡¢100mlÈÝÁ¿Æ¿¡¢
Á§°ô
Á§°ô
¡¢½ºÍ·µÎ¹Ü
½ºÍ·µÎ¹Ü
£®£¨2£©Ê¹ÓÃÈÝÁ¿Æ¿Ç°±ØÐë½øÐеÄÒ»²½²Ù×÷ÊÇ
²é©
²é©
£¨3£©ÓÃŨÑÎËáÅäÖƸÃÏ¡ÑÎËáÐèÒªÒÔÏÂÄÄЩ²½Ö裨°´²Ù×÷˳ÐòÌîдÐòºÅ£©£º
¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú
¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú
£®¢Ù¼ÆËã ¢Ú£®×°Æ¿ ¢Û£®ÓÃ50mLÁ¿Í²Á¿È¡Ò»¶¨Ìå»ýµÄŨÑÎËá
¢ÜÏ´µÓ ¢Ý£®ÒÆÒº ¢Þ£®Ï¡ÊÍ ¢ß£®¶¨ÈÝ ¢à£®Ò¡ÔÈ ¢á£®Õñµ´
£¨4£©ÔÚÅäÖƹý³ÌÖÐÆäËü²Ù×÷¶¼ÕýÈ·£¬ÏÂÁвÙ×÷»áÒýÆðËùÅäÈÜҺŨ¶ÈƫСµÄÊÇ
¢Ù¢Ü
¢Ù¢Ü
¢ÙûÓÐÏ´µÓÉÕ±ºÍ²£Á§°ô£»¢ÚÈÝÁ¿Æ¿Öк¬ÓÐÉÙÁ¿ÕôÁóË®£»¢Û¶¨ÈÝʱ¸©ÊÓ±êÏߣ»¢Ü¶¨ÈÝʱÑöÊÓ±êÏߣ»
£¨5£©MnO2 ºÍŨÑÎËáµÄ·´Ó¦ÖУ¨ MnO2+4HCl£¨Å¨£©
| ||
29.2
29.2
¿Ë£¬Éú³ÉÂÈÆøÔÚ±ê¿öϵÄÌå»ý8.96
8.96
L£®·ÖÎö£ºÏȸù¾Ýc=
¼ÆËãŨÑÎËáµÄÎïÖʵÄÁ¿Å¨¶È£¬ÔÙ¸ù¾Ýc£¨Å¨£©¡ÁV£¨Å¨£©=c£¨Ï¡£©¡ÁV£¨Ï¡£©¼ÆË㣻
£¨1£©¸ù¾Ý²Ù×÷²½ÖèѡȡʵÑéÒÇÆ÷£»
£¨2£©Òò×îºóÐèµßµ¹Ò¡ÔÈ£¬ËùÒÔÈÝÁ¿Æ¿ÔÚʹÓÃÇ°±ØÐë¼ì²éÊÇ·ñ©ˮ£»
£¨3£©ÅäÖƲ½ÖèÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿µÈ²Ù×÷£»
£¨4£©¸ù¾Ýc=
·ÖÎö²Ù×÷¶ÔÈÜÖʵÄÎïÖʵÄÁ¿»ò¶ÔÈÜÒºµÄÌå»ýµÄÓ°ÏìÅжϣ»
£¨5£©Ïȸù¾ÝMnO2+4HCl£¨Å¨£©
MnCl2+Cl2¡ü+2H2OÇó³ö²Î¼Ó·´Ó¦µÄÑÎËáºÍÉú³ÉÂÈÆø£¬ÔÙ¸ù¾Ý²Î¼Ó·´Ó¦µÄÂÈ»¯ÇâºÍ±»Ñõ»¯µÄÂÈ»¯ÇâÖ®¼äµÄ¹Øϵʽ¼ÆË㣻
1000¦Ñw |
M |
£¨1£©¸ù¾Ý²Ù×÷²½ÖèѡȡʵÑéÒÇÆ÷£»
£¨2£©Òò×îºóÐèµßµ¹Ò¡ÔÈ£¬ËùÒÔÈÝÁ¿Æ¿ÔÚʹÓÃÇ°±ØÐë¼ì²éÊÇ·ñ©ˮ£»
£¨3£©ÅäÖƲ½ÖèÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿µÈ²Ù×÷£»
£¨4£©¸ù¾Ýc=
n |
V |
£¨5£©Ïȸù¾ÝMnO2+4HCl£¨Å¨£©
| ||
½â´ð£º½â£ºÅ¨ÑÎËáµÄÎïÖʵÄÁ¿Å¨¶Èc=
=
=12mol/L£¬ÈÜҺϡÊÍÇ°ºóÈÜÖʵÄÎïÖʵÄÁ¿²»±ä£¬ÔòÓÐ0.10L¡Á3.00mol/L=12.0mol/L?V£¨Å¨£©£¬V£¨Å¨£©=0.025L£¬¼´25ml£¬
¹Ê´ð°¸Îª£º25ml£»
£¨2£©ÅäÖƲ½ÖèÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔȵȲÙ×÷£¬Ò»°ãÓÃÁ¿Í²Á¿È¡Å¨ÁòËáÔÚÉÕ±ÖÐÏ¡ÊÍ£¬ÀäÈ´ºóתÒƵ½100mLÈÝÁ¿Æ¿ÖУ¬²¢Óò£Á§°ôÒýÁ÷£¬µ±¼ÓË®ÖÁÒºÃæ¾àÀë¿Ì¶ÈÏß1¡«2cmʱ£¬¸ÄÓýºÍ·µÎ¹ÜµÎ¼Ó£¬ËùÒÔÐèÒªµÄÒÇÆ÷Óв£Á§°ô¡¢Á¿Í²¡¢½ºÍ·µÎ¹Ü¡¢ÉÕ±¡¢100mlÈÝÁ¿Æ¿£®
¹Ê´ð°¸Îª£ºÁ§°ô£¬½ºÍ·µÎ¹Ü£»
£¨2£©ÒòΪ×îºóÐèµßµ¹Ò¡ÔÈ£¬ËùÒÔÈÝÁ¿Æ¿ÔÚʹÓÃÇ°±ØÐë¼ì²éÊÇ·ñ©ˮ£»
¹Ê´ð°¸Îª£º²é©£»
£¨3£©ÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈµÄÈÜÒºÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿µÈ²Ù×÷£¬ÆäÏȺó˳ÐòΪ¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú£¬
¹Ê´ð°¸Îª£º¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú£»
£¨4£©¢ÙûÓÐÏ´µÓÉÕ±ºÍ²£Á§°ô£¬µ¼ÖÂÈÜÖʵÄÎïÖʵÄÁ¿Æ«Ð¡£¬¸ù¾Ýc=
·ÖÎö¿ÉÖªËùÒÔÅäÖÆÈÜÒºµÄŨ¶ÈÆ«µÍ£¬¹Ê¢ÙÕýÈ·£»
¢ÚÈÝÁ¿Æ¿Öк¬ÓÐÉÙÁ¿ÕôÁóË®£¬ÈÜÖʵÄÎïÖʵÄÁ¿ºÍÈÜÒºµÄÌå»ý¶¼Î´¸Ä±ä£¬¸ù¾Ýc=
·ÖÎö¿ÉÖªËùÒÔÎÞÓ°Ï죬¹Ê¢Ú´íÎó£»
¢Û¶¨ÈÝʱ¸©ÊÓ±êÏߣ¬µ¼ÖÂÈÜÒºµÄÌå»ýƫС£¬¸ù¾Ýc=
·ÖÎö¿ÉÖªÅäÖÆÈÜÒºµÄŨ¶ÈÆ«¸ß£¬¹Ê¢Û´íÎó£»
¢Ü¶¨ÈÝʱÑöÊÓ±êÏߣ¬µ¼ÖÂÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾Ýc=
·ÖÎö¿ÉÖªÅäÖÆÈÜÒºµÄŨ¶ÈÆ«µÍ£¬¹Ê¢ÜÕýÈ·£»
¹ÊÑ¡£º¢Ù¢Ü£»
£¨5£©34.8gMnO2µÄÎïÖʵÄÁ¿
=0.4mol£¬
MnO2 +4HCl£¨Å¨£©
MnCl2+Cl2¡ü+2H2O
1 4 1
0.4mol 1.6mol 0.4mol
²Î¼ÓÑõ»¯»¹Ô·´Ó¦µÄÂÈ»¯ÇâÊDzμӷ´Ó¦µÄÂÈ»¯ÇâµÄÒ»°ë£¬ËùÒÔ±»Ñõ»¯µÄÂÈ»¯ÇâµÄÎïÖʵÄÁ¿0.8mol£¬ÖÊÁ¿Îª
0.8mol¡Á36.5g/mol=29.2g£¬Éú³ÉÂÈÆøÔÚ±ê¿öϵÄÌå»ýΪ0.4mol¡Á22.4L/mol=8.96L£»
¹Ê´ð°¸Îª£º29.2£»2£»
1000¦Ñw |
M |
1000¡Á1.20g/L¡Á36.5% |
36.5g/mol |
¹Ê´ð°¸Îª£º25ml£»
£¨2£©ÅäÖƲ½ÖèÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔȵȲÙ×÷£¬Ò»°ãÓÃÁ¿Í²Á¿È¡Å¨ÁòËáÔÚÉÕ±ÖÐÏ¡ÊÍ£¬ÀäÈ´ºóתÒƵ½100mLÈÝÁ¿Æ¿ÖУ¬²¢Óò£Á§°ôÒýÁ÷£¬µ±¼ÓË®ÖÁÒºÃæ¾àÀë¿Ì¶ÈÏß1¡«2cmʱ£¬¸ÄÓýºÍ·µÎ¹ÜµÎ¼Ó£¬ËùÒÔÐèÒªµÄÒÇÆ÷Óв£Á§°ô¡¢Á¿Í²¡¢½ºÍ·µÎ¹Ü¡¢ÉÕ±¡¢100mlÈÝÁ¿Æ¿£®
¹Ê´ð°¸Îª£ºÁ§°ô£¬½ºÍ·µÎ¹Ü£»
£¨2£©ÒòΪ×îºóÐèµßµ¹Ò¡ÔÈ£¬ËùÒÔÈÝÁ¿Æ¿ÔÚʹÓÃÇ°±ØÐë¼ì²éÊÇ·ñ©ˮ£»
¹Ê´ð°¸Îª£º²é©£»
£¨3£©ÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈµÄÈÜÒºÓмÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿µÈ²Ù×÷£¬ÆäÏȺó˳ÐòΪ¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú£¬
¹Ê´ð°¸Îª£º¢Ù¢Û¢Þ¢Ý¢Ü¢ß¢à¢Ú£»
£¨4£©¢ÙûÓÐÏ´µÓÉÕ±ºÍ²£Á§°ô£¬µ¼ÖÂÈÜÖʵÄÎïÖʵÄÁ¿Æ«Ð¡£¬¸ù¾Ýc=
n |
V |
¢ÚÈÝÁ¿Æ¿Öк¬ÓÐÉÙÁ¿ÕôÁóË®£¬ÈÜÖʵÄÎïÖʵÄÁ¿ºÍÈÜÒºµÄÌå»ý¶¼Î´¸Ä±ä£¬¸ù¾Ýc=
n |
V |
¢Û¶¨ÈÝʱ¸©ÊÓ±êÏߣ¬µ¼ÖÂÈÜÒºµÄÌå»ýƫС£¬¸ù¾Ýc=
n |
V |
¢Ü¶¨ÈÝʱÑöÊÓ±êÏߣ¬µ¼ÖÂÈÜÒºµÄÌå»ýÆ«´ó£¬¸ù¾Ýc=
n |
V |
¹ÊÑ¡£º¢Ù¢Ü£»
£¨5£©34.8gMnO2µÄÎïÖʵÄÁ¿
34.8g |
87g/mol |
MnO2 +4HCl£¨Å¨£©
| ||
1 4 1
0.4mol 1.6mol 0.4mol
²Î¼ÓÑõ»¯»¹Ô·´Ó¦µÄÂÈ»¯ÇâÊDzμӷ´Ó¦µÄÂÈ»¯ÇâµÄÒ»°ë£¬ËùÒÔ±»Ñõ»¯µÄÂÈ»¯ÇâµÄÎïÖʵÄÁ¿0.8mol£¬ÖÊÁ¿Îª
0.8mol¡Á36.5g/mol=29.2g£¬Éú³ÉÂÈÆøÔÚ±ê¿öϵÄÌå»ýΪ0.4mol¡Á22.4L/mol=8.96L£»
¹Ê´ð°¸Îª£º29.2£»2£»
µãÆÀ£º±¾ÌâÖ÷Òª¿¼²éÁËÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈÈÜÒºµÄÅäÖƺͻ¯Ñ§¼ÆË㣬ÄѶȲ»´ó£¬¸ù¾ÝËùѧ֪ʶ¼´¿ÉÍê³É£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿