ÌâÄ¿ÄÚÈÝ
4£®£¨CH3COOOH£©ÊÇÎÞɫ͸Ã÷ÒºÌ壬Ò×ÈÜÓÚË®¡¢Ò×»Ó·¢£¬¼û¹âÒ׷ֽ⣬¾ßÓÐÇ¿Ñõ»¯ÐԵĸßЧÏû¶¾¼Á£¬Ê¹ÓùýÑõÒÒËáÏû¶¾¼Áʱͨ³£ÏÈÓÃˮϡÊ͹¤ÒµÆ·¹ýÑõÒÒËᣬȻºóÓÃÅçÎí·¨¶Ô¿ÕÆøÓëµØÃæ½øÐÐÏû¶¾£®
£¨1£©ÅäÖÆ220mL0.05mol/LµÄ¹ýÑõÒÒËáÈÜÒº£¬ÐèʹÓõÄÒÇÆ÷ÓУºÉÕ±¡¢Á¿Í²¡¢²£Á§°ô¼°250mlÈÝÁ¿Æ¿¡¢½ºÍ·µÎ¹Ü¡¢£¨2£©ÅäÖƹý³ÌÖУ¬¿ÉÄÜÒýÆðŨ¶ÈÆ«¸ßµÄ²Ù×÷ÓÐC
A£®ÈÝÁ¿Æ¿ÓÃÕôÁóˮϴµÓºóδ¸ÉÔº¬ÓÐÉÙÁ¿ÕôÁóË®
B£®×ªÒÆÈÜҺʱ£¬²»É÷ÓÐÉÙÁ¿ÈÜÒºÈ÷ÔÚÈÝÁ¿Æ¿Íâ
C£®¶¨ÈÝʱ£¬¸©ÊÓÈÝÁ¿Æ¿¿Ì¶ÈÏß½øÐж¨ÈÝ
D£®¶¨Èݺ󣬰ÑÈÝÁ¿Æ¿µ¹ÖÃÒ¡ÔȺó·¢ÏÖÒºÃæµÍÓڿ̶ÈÏߣ¬²¹³ä¼¸µÎË®ÖÁ¿Ì¶ÈÏß
£¨3£©ÏÂÁÐÐðÊöÕýÈ·µÄÊÇBC£¨Ìî×Öĸ£©
A£®¿ÉÓùýÂ˵ķ½·¨½«¹ýÑõÒÒËáÈÜÒºÖлìÓеÄNaCl³ýµô
B£®¹ýÑõÒÒËá°ü×°ÉÏÓ¦ÌùµÄΣÏÕ¾¯¸æ±êÇ©Ó¦ÈçÓÒͼËùʾ
C£®¹ýÑõÒÒËáӦעÒâÃܱա¢µÍα£´æÓÚ×Øɫϸ¿ÚÆ¿ÖÐ
D£®¹ýÑõÒÒËáÊÇÒ»ÖÖÓлúÎËü¿ÉÒÔÓÃÓÚÝÍÈ¡µâË®ÖеĵⵥÖÊ
£¨4£©¹ýÑõÒÒËá°ëСʱÄÚ»áÍêÈ«·Ö½â³ÉÒÒËᣨCH3COOH£©ºÍÒ»ÖÖ³£¼ûµÄÆøÌåµ¥ÖÊ£¬¼ìÑé¸ÃÆøÌåµ¥ÖʵÄʵÑé·½·¨ÊÇÓôø»ðÐǵÄľ¹÷½Ó´¥ÆøÌ壬¹Û²ìÊÇ·ñ¸´È¼£®
£¨5£©Èç¹ûÉú²ú¹ýÑõÒÒËáµÄÔÁÏCH3COONaÖлìÓÐÁËSO42-£¬ÒªÏë³ýµôSO42-ÇëÑ¡ÔñÏÂÁÐÊÔ¼Á°´ÕÕ¼ÓÈëÏȺó˳ÐòÌî¿Õ¢Ú¢Ý¢Ü£¨ÊÔ¼Á²»±ØÑ¡Í꣬ÌîÐòºÅ¼´¿É£©
¢ÙÑÎËá¢Ú´×Ëá±µÈÜÒº¢ÛÂÈ»¯±µÈÜÒº¢Ü´×Ëá¢Ý̼ËáÄÆÈÜÒº¢Þ̼ËáÇâÄÆÈÜÒº
£¨6£©ÖÆÈ¡¹ýÑõÒÒËá·´Ó¦ÔÀíΪ£ºH2O2+CH3COOH$\stackrel{ŨH_{2}SO_{4}}{¡ú}$CH3COOOH£¨¹ýÑõÒÒËᣩ+H2O£¬ÏÖ³ÆÈ¡5.0gÓÃÉÏÊö·½·¨ÖÆÈ¡µÄ¹ýÑõÒÒËáÊÔÑù£¨ÒºÌ壩£¬Ï¡ÊÍÖÁ100mL±¸Óã®È¡ÉÏÊöÏ¡Êͺó¹ýÑõÒÒËáÊÔÑù5.0mL£¬ÓÃ0.01mol/L KMnO4ÈÜÒºÒÔ³ýÈ¥ÆäÖеÄH2O2£¬Ëæ¼´¼ÓÈë10%KIÈÜÒº10mL£¬Ò¡ÔÈ£¨»¯Ñ§·´Ó¦·½³ÌʽΪCH3COOOH+2KI=CH3COOK+I2+KOH£©ÔÙ½«0.05mol/L Na2S2O3±ê×¼ÈÜÒº¼ÓÈëµ½ÉÏÊö»ìºÏÈÜÒºÖУ¨»¯Ñ§·´Ó¦·½³ÌʽΪ£ºI2+2Na2S2O3=2NaI+Na2S4O6£©£¬ÏûºÄNa2S2O3±ê×¼ÈÜÒºµÄ×ÜÌå»ýΪ20mL£®Í¨¹ý¼ÆËãÈ·¶¨ÔÊÔÑùÖйýÑõÒÒËáµÄÖÊÁ¿·ÖÊýΪ15.2%£®
·ÖÎö £¨1£©¸ù¾ÝÅäÖƲ½ÖèÊǼÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÀäÈ´¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿À´·ÖÎöÐèÒªµÄÒÇÆ÷£»
£¨2£©¸ù¾Ýc=$\frac{n}{V}$²¢½áºÏÈÜÖʵÄÎïÖʵÄÁ¿nºÍÈÜÒºµÄÌå»ýVµÄ±ä»¯À´½øÐÐÎó²î·ÖÎö£»
£¨3£©A£®NaClÒ×ÈÜÓÚ¹ýÑõÒÒË᣻
B£®¹ýÑõÒÒËáÓÐÇ¿Ñõ»¯ÐÔ£»
C£®¹ýÑõÒÒËáÊÇҺ̬£¬¼û¹âÒ׷ֽ⣻
D£®¹ýÑõÒÒËáÒ×ÈÜÓÚË®£®
£¨4£©¹ýÑõÒÒËáÄÜ·Ö½âΪÒÒËáºÍÑõÆø£¬¸ù¾ÝÑõÆøÄÜʹ´ø»ðÐǵÄľÌõ¸´È¼À´·ÖÎö£»
£¨5£©³ýÈ¥CH3COONaÖлìÓеÄSO42-£¬Ó¦¼ÓÈë¹ýÁ¿µÄ´×Ëá±µ£¬È»ºó¼Ó̼ËáÄƳýÈ¥¹ýÁ¿µÄ±µÀë×Ó£¬×îºó¼Ó´×Ëá³ýÈ¥¹ýÁ¿µÄ̼Ëá¸ù¼´¿É£»
£¨6£©¸ù¾Ý£¨3£©µÄ·½³Ìʽ¼°I2+2S2O32-=2I-+S4O62-Á½¸ö»¯Ñ§·½³Ìʽ£¬¿ÉÒԵùØϵʽÈçÏ£ºCH3COOOH¡«I2¡«2Na2S2O3£¬¾Ý´Ë¼ÆËãÏ¡Êͺó5mL·´Ó¦ÖÐn£¨CH3COOOH£©£¬½ø¶ø¼ÆËãÔÊÔÑùÖйýÑõÒÒËáµÄÖÊÁ¿·ÖÊý£®
½â´ð ½â£º£¨1£©¸ù¾ÝÅäÖƲ½ÖèÊǼÆËã¡¢Á¿È¡¡¢Ï¡ÊÍ¡¢ÀäÈ´¡¢ÒÆÒº¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔÈ¡¢×°Æ¿¿ÉÖªËùÐèµÄÒÇÆ÷ÓÐÁ¿Í²¡¢ÉÕ±¡¢²£Á§°ô¡¢250mLÈÝÁ¿Æ¿ºÍ½ºÍ·µÎ¹Ü£¬¹Ê³ýÁËÉÕ±¡¢Á¿Í²¡¢²£Á§°ôÍ⣬»¹ÐèÒª250mlÈÝÁ¿Æ¿¡¢½ºÍ·µÎ¹Ü£¬¹Ê´ð°¸Îª£º250mlÈÝÁ¿Æ¿£»½ºÍ·µÎ¹Ü£»
£¨2£©A£®ÈÝÁ¿Æ¿ÓÃÕôÁóˮϴµÓºóδ¸ÉÔº¬ÓÐÉÙÁ¿ÕôÁóË®¶ÔËùÅäÈÜÒºµÄŨ¶ÈÎÞÓ°Ï죬¹ÊA´íÎó£»
B£®×ªÒÆÈÜҺʱ£¬²»É÷ÓÐÉÙÁ¿ÈÜÒºÈ÷ÔÚÈÝÁ¿Æ¿Í⣬»áÔì³ÉÈÜÖʵÄËðʧ£¬ÔòŨ¶ÈÆ«µÍ£¬¹ÊB´íÎó£»
C£®¶¨ÈÝʱ£¬¸©ÊÓÈÝÁ¿Æ¿¿Ì¶ÈÏß½øÐж¨ÈÝ£¬ÔòÈÜÒºÌå»ýƫС£¬Å¨¶ÈÆ«¸ß£¬¹ÊCÕýÈ·£»
D£®¶¨Èݺ󣬰ÑÈÝÁ¿Æ¿µ¹ÖÃÒ¡ÔȺó·¢ÏÖÒºÃæµÍÓڿ̶ÈÏßÊÇÕý³£µÄ£¬²»±Ø²¹³ä¼¸µÎË®ÖÁ¿Ì¶ÈÏߣ¬Èô²¹³äÁË£¬ÔòŨ¶ÈÆ«µÍ£¬¹ÊD´íÎó£®
¹ÊÑ¡C£»
£¨3£©A£®NaClÒ×ÈÜÓÚ¹ýÑõÒÒËᣬ¹Ê²»ÄÜÓùýÂ˵ķ½·¨³ýÈ¥¹ýÑõÒÒËáÖеÄÂÈ»¯ÄÆ£¬¹ÊA´íÎó£»
B£®¹ýÑõÒÒËáÓÐÇ¿Ñõ»¯ÐÔ£¬¹ýÑõÒÒËá°ü×°ÉÏÓ¦ÌùµÄΣÏÕ¾¯¸æ±êÇ©Ó¦ÈçÓÒͼËùʾ£¬¹ÊBÕýÈ·£»
C£®¹ýÑõÒÒËáÊÇҺ̬£¬¼û¹âÒ׷ֽ⣬¹ÊÓ¦±Ü¹â±£´æ£¬ÇÒÓÉÓÚÊÇҺ̬£¬Ó¦±£´æÔÚϸ¿ÚÆ¿ÖУ¬¹ÊCÕýÈ·£»
D£®¹ýÑõÒÒËáÒ×ÈÜÓÚË®£¬¹Ê²»ÄÜÝÍÈ¡µâË®Öеĵ⣬¹ÊD´íÎó£®
¹ÊÑ¡BC£»
£¨4£©¹ýÑõÒÒËáÄÜ·Ö½âΪÒÒËáºÍÑõÆø£¬¶øÑõÆøÄÜʹ´ø»ðÐǵÄľÌõ¸´È¼£¬¹Ê¼ìÑéÑõÆøµÄ·½·¨Îª£ºÓôø»ðÐǵÄľ¹÷½Ó´¥ÆøÌ壬¹Û²ìÊÇ·ñ¸´È¼£¬¹Ê´ð°¸Îª£ºÓôø»ðÐǵÄľ¹÷½Ó´¥ÆøÌ壬¹Û²ìÊÇ·ñ¸´È¼£»
£¨5£©³ýÈ¥CH3COONaÖлìÓеÄSO42-£¬Ó¦¼ÓÈë±µÑΣ¬ÒýÈë±µÀë×Ó£¬¶ø´Ó²»ÒªÒýÈëÐÂÔÓÖʵĽǶÈÀ´·ÖÎö£¬Ó¦¼ÓÈë¹ýÁ¿µÄ´×Ëá±µ£»È»ºó¼Ó¹ýÁ¿µÄ̼ËáÄƳýÈ¥¹ýÁ¿µÄ±µÀë×Ó£¬×îºó¼Ó´×Ëá³ýÈ¥¹ýÁ¿µÄ̼Ëá¸ù¼´¿É£¬¹Ê´ð°¸Îª£º¢Ú¢Ý¢Ü£»
£¨6£©¸ù¾Ý£¨3£©µÄ·½³Ìʽ¼°I2+2S2O32-=2I-+S4O62-Á½¸ö»¯Ñ§·½³Ìʽ£¬¿ÉÒԵùØϵʽÈçÏ£ºCH3COOOH¡«I2¡«2Na2S2O3£¬ÓɹØϵʽ¿ÉÖª£¬n£¨CH3COOOH£©=$\frac{1}{2}$n£¨Na2S2O3£©=$\frac{1}{2}$¡Á0.05mol/L¡Á0.02L=5¡Á10-4mol£¬¹ÊÔÑùÆ·ÖÐw£¨CH3COOOH£©=$\frac{5¡Á1{0}^{-4}mol¡Á76g/mol}{5g¡Á\frac{5mL}{100mL}}$¡Á100%=15.2%£¬
¹Ê´ð°¸Îª£º15.2%£®
µãÆÀ ±¾Ì⿼²éÑõ»¯»¹Ô·´Ó¦µÎ¶¨¡¢ÊµÑéÔÀíµÄ·ÖÎöºÍ¶à²½·´Ó¦¹ØϵµÄ¼ÆËãµÈ£¬ÄѶÈÖеȣ¬£¨6£©ÖÐ×¢ÒâÀûÓùØϵʽ½øÐмÆË㣬ΪÒ×´íµã£¬Ñ§ÉúÈÝÒ׺öÂԵζ¨ÖÐËùÈ¡ÈÜÒºµÄÌå»ý£¬°´Ï¡ÊͺóÈÜÒºÌå»ý¼ÆË㣬µ¼Ö´íÎó´ð°¸£®
A£® | 1molÂÈ»¯¸ÆÈÜÓÚË®Åä³É1 LÈÜÒº£¬ËùµÃÈÜÒºÖÐCl-µÄÎïÖʵÄÁ¿Å¨¶ÈΪ1mol/L | |
B£® | ÔÚ±ê×¼×´¿öÏ£¬11.2LH2OËùº¬µÄÇâÔ×ÓÊýΪNA | |
C£® | CO2µÄĦ¶ûÖÊÁ¿Îª44g | |
D£® | ±ê×¼×´¿öÏÂ22.4LCH4Óël8gH2OËùº¬Óеĵç×ÓÊý¾ùΪ10NA |
A£® | ÈÜÒºÈÔΪ×ÏÉ« | |
B£® | ÈÜÒºÖÐÓÐÆøÅݲúÉú£¬ÈÜÒº×îÖÕ±äΪÎÞÉ« | |
C£® | ×îÖÕÈÜÒºÍÊÉ«£¬¶øÎÞÆäËûÏÖÏó | |
D£® | ÈÜÒº×îÖÕ±äΪÀ¶É« |
A£® | Cu£¨OH£©2ÓëÑÎËá Cu£¨OH£©2Óë´×Ëá | |
B£® | BaCl2ÈÜÒºÓëNa2SO4ÈÜÒº Ba£¨OH£©2ÈÜÒºÓëNa2SO4ÈÜÒº | |
C£® | NaHCO3ÈÜÒºÓëNaHSO4ÈÜÒº Na2CO3ÈÜÒºÓëNaHSO4ÈÜÒº | |
D£® | ʯ»ÒʯÓëÏõËá Éúʯ»ÒÓëÑÎËá |
A£® | 1.0L1.0mo1•L-1µÄNaNO3Ë®ÈÜÒºÖк¬ÓеÄÑõÔ×ÓÊýΪ3NA | |
B£® | 3.9gNa2O2¾§ÌåÖÐÒõÑôÀë×Ó×ÜÊýΪ0.15NA | |
C£® | 25¡æʱpH=13µÄBa£¨OH£©2ÈÜÒºÖк¬ÓÐOHÒ»µÄÊýĿΪ0.1NA | |
D£® | 1 molµÄôÇ»ùÓë1 molµÄÇâÑõ¸ùÀë×ÓËùº¬µç×ÓÊý¾ùΪ9NA |
A£® | ÑÇÂÈËáÄÆÔÚËáÐÔÌõ¼þϽÏÎȶ¨ | |
B£® | 25¡æʱ£¬HClO2µÄµçÀëƽºâ³£ÊýµÄÊýÖµKa=10-6 | |
C£® | pHÔ½´ó£¬¸ÃƯ°×¼ÁµÄƯ°×ÐÔÄÜÔ½ºÃ | |
D£® | 25¡æ£¬pH=3ʱ£¬NaClO2ÈÜÒºÖУºc£¨Na+£©+c£¨H+£©=c£¨ClO2-£©+c£¨OH-£© |