¡¾ÌâÄ¿¡¿ÏÖÓг£ÎÂϵÄËÄÖÖÈÜÒº£º¢Ù0.1 mol¡¤L-1 NH4ClÈÜÒº ¢Ú0.1 mol¡¤L-1 NH4ClºÍ0.1 mol¡¤L-1 NH3¡¤H2OµÄ»ìºÏÈÜÒº£¨ÏÔ¼îÐÔ£©¢Û0.1 mol¡¤L-1 NH3¡¤H2O ¢Ü0.1 mol¡¤L-1 NH4ClºÍ0.1 mol¡¤L-1 HClµÄ»ìºÏÈÜÒºÏÂÁÐ˵·¨²»ÕýÈ·µÄÊÇ£¨ £©

A. NH4+Àë×ÓŨ¶ÈÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Ú>¢Ü>¢Ù>¢Û

B. NH3¡¤H2O·Ö×ÓŨ¶ÈÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Ú>¢Û>¢Ù>¢Ü

C. ÈÜÒºµÄpHÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Û>¢Ú>¢Ù>¢Ü

D. ÈÜÒºÖеÄÀë×Ó×ÜŨ¶ÈÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Ü>¢Ù>¢Ú>¢Û

¡¾´ð°¸¡¿D

¡¾½âÎö¡¿

A£®µÈŨ¶ÈµÄÕ⼸ÖÖÈÜÒºÖУ¬ÑÎÖÐ笠ùÀë×ÓŨ¶È´óÓÚ°±Ë®ÖÐ笠ùÀë×ÓŨ¶È£¬ÑÎËáÒÖÖÆ笠ùÀë×ÓË®½â£»

B£®µÈŨ¶ÈµÄÕ⼸ÖÖÈÜÒºÖУ¬ï§¸ùÀë×ÓÒÖÖÆһˮºÏ°±µçÀ룬ÑÎËáÒÖÖÆ笠ùÀë×ÓË®½â£»

C£®ÂÈ»¯ï§ÈÜÒº³ÊËáÐÔ¡¢°±Ë®ÈÜÒº³Ê¼îÐÔ£¬µÈŨ¶ÈµÄÂÈ»¯ï§ºÍ°±Ë®»ìºÏÈÜÒºÖУ¬Ò»Ë®ºÏ°±µçÀë³Ì¶È´óÓÚ笠ùÀë×ÓË®½â³Ì¶È£»

D£®ÈÜÒºÖÐÀë×Ó¶¼Îª1¼ÛÀë×Ó£¬ÈÜÒºÖÐÀë×Ó×ÜŨ¶ÈΪÒõÀë×Ó×ÜŨ¶ÈµÄ2±¶£¬½áºÏÈÜÒºÖÐÂÈÀë×Ó¡¢ÇâÑõ¸ùÀë×ÓŨ¶ÈÅжϡ£

A£®¢ÙÖÐNH4+Àë×ÓË®½â£¬NH4++H2ONH3¡¤H2O+H+£¬Ë®½âʹÈÜÒºÏÔËáÐÔ£¬¢ÚÖÐÈÜÒº³Ê¼îÐÔ£¬Ò»Ë®ºÏ°±µçÀë×÷ÓôóÓÚNH4+Àë×ÓË®½â×÷Óã¬Ê¹ÈÜÒºÖÐc(NH4+)´óÓÚ¢ÙÖÐc(NH4+)Ũ¶È£¬¢ÛÖÐһˮºÏ°±µçÀ룬²úÉúNH4+Àë×Ó£¬µ«ÊÇÈõµç½âÖʵçÀë³Ì¶È²»´ó£¬Ô¶Ð¡ÓÚ¢ÙÖÐÑεçÀë²úÉúµÄc(NH4+)¶È£»¢ÜÖÐ笠ùË®½âʹÈÜÒºÏÔËáÐÔ£¬ÓÉÓÚHClµçÀë²úÉúH+£¬Ê¹ÈÜÒºÖÐc(H+)Ôö´ó£¬ÒÖÖÆÁËNH4+Àë×ÓË®½â£¬×îÖÕc(NH4+)´óÓÚ¢Ù¶øСÓÚ¢Ú£¬¹Êc(NH4+)´óС˳ÐòÊÇ£º¢Ú£¾¢Ü£¾¢Ù£¾¢Û£¬Ñ¡ÏîAÕýÈ·£»

B£®¢Ù¢ÜÖÐNH4+Àë×ÓË®½â£¬²úÉúNH3H2O£¬¢ÜÖÐHClÒÖÖÆNH4+Àë×ÓË®½â£¬ËùÒÔ¢ÜÖÐcNH3H2O)СÓÚ¢ÙÖÐc(NH3H2O)£¬NH4+Ë®½â³Ì¶È±È½Ï΢Èõ£¬¢ÙÖÐc(NH3H2O)ԶСÓÚ¢ÚÖÐc(NH3H2O)£¬¢ÚÖÐNH4+Àë×ÓÒÖÖÆһˮºÏ°±µÄµçÀ룬ËùÒÔ¢ÚÖÐc(NH3H2O)´óÓÚ¢ÛÖÐc(NH3H2O)£¬¹Êc(NH3H2O)ÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Ú£¾¢Û£¾¢Ù£¾¢Ü£¬Ñ¡ÏîBÕýÈ·£»

C£®¢ÙÖÐNH4+Àë×ÓË®½â£¬Ê¹ÈÜÒº³ÊËáÐÔ£¬¢ÜÖÐÑÎËáÍêÈ«µçÀ룬NH4+Àë×ÓË®½â²úÉúÇâÀë×Ó£¬ÈÜÒºËáÐԱȢÙÖеÄÇ¿£¬¢Ú¢ÛÖÐÈÜÒº¶¼³Ê¼îÐÔ£¬µ«¢ÚÖÐNH4+Àë×ÓÒÖÖÆһˮºÏ°±µÄµçÀ룬ʹ¢ÛÖмîÐÔ¸üÇ¿£¬¹ÊÈÜÒºµÄpHÓÉ´óµ½Ð¡µÄ˳ÐòΪ¢Û£¾¢Ú£¾¢Ù£¾¢Ü£¬Ñ¡ÏîCÕýÈ·£»

D£®¢Ù¢Ü¶¼³ÊËáÐÔ£¬¢ÙÖÐNH4+Àë×ÓË®½â£¬ÈÜÒº³ÊËáÐÔ£¬¢ÜÖÐÑÎËáÍêÈ«µçÀë¡¢NH4+Àë×ÓË®½â²úÉúÇâÀë×Ó£¬ËùÒÔÈÜÒº¢ÜËáÐԱȢÙÖеÄÇ¿£¬¹ÊOH-Àë×ÓŨ¶È¢Ù£¾¢Ü£»¢Ú¢ÛÖÐÈÜÒº¶¼³Ê¼îÐÔ£¬ÈÜÒºÖÐOH-Àë×ÓŨ¶È¶¼´óÓÚ¢Ù£»¢ÜÖÐÂÈÀë×ÓÀ´Ô´ÓÚÂÈ»¯ï§¡¢HClµÄµçÀ룻¢Ù¢ÚÖÐÂÈÀë×ÓÀ´Ô´ÓÚÂÈ»¯ï§µÄµçÀ룬¹Ê·´Ó¦ÖÐCl-Àë×ÓŨ¶È¢Ü=2¡Á¢Ù=2¡Á¢Ú£¬¢ÛÖÐNH3¡¤H2OµçÀë³Ì¶È²»´ó£¬OH-Àë×ÓŨ¶ÈԶԶСÓÚ¢Ù¡¢¢ÚÖÐCl-Àë×ÓŨ¶È£¬¹ÊÈÜÒºÖÐÒõÀë×Ó×ÜŨ¶È£º¢Ü£¾¢Ú£¾¢Ù£¾¢Û£¬ÈÜÒºÖÐÑôÀë×ÓÒ²¶¼ÊÇ+1¼ÛÀë×Ó£¬¹ÊÈÜÒºÖÐÀë×Ó×ÜŨ¶ÈΪÒõÀë×Ó×ÜŨ¶ÈµÄ2±¶£¬¹ÊÈÜÒºÖÐÀë×Ó×ÜŨ¶ÈΪ¢Ü£¾¢Ú£¾¢Ù£¾¢Û£¬Ñ¡ÏîD´íÎó£»

¹ÊºÏÀíÑ¡ÏîÊÇD¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÒÑ֪ijζÈÏÂCH3COOHºÍNH3¡¤H2OµÄµçÀë³£ÊýÏàµÈ£¬ÏÖÏò10 mLŨ¶ÈΪ0.1 mol¡¤L£­1µÄCH3COOHÈÜÒºÖеμÓÏàͬŨ¶ÈµÄ°±Ë®£¬Ôڵμӹý³ÌÖÐ(¡¡¡¡)

A. Ë®µÄµçÀë³Ì¶ÈʼÖÕÔö´ó

B. c(NH4+)/c(NH3¡¤H2O)ÏÈÔö´óÔÙ¼õС

C. c(CH3COOH)Óëc(CH3COO£­)Ö®ºÍʼÖÕ±£³Ö²»±ä

D. µ±¼ÓÈ백ˮµÄÌå»ýΪ10 mLʱ£¬c(NH4+)£½c(CH3COO£­)

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÏàͬζÈÏÂÈÜÒºµÄËá¼îÐÔ¶ÔTiO2¹â´ß»¯È¼ÁÏR½µ½â·´Ó¦µÄÓ°ÏìÈçͼËùʾ¡£ÏÂÁÐÅжϲ»ÕýÈ·µÄÊÇ£¨ £©

A. ¶Ô±ÈpH=7ºÍpH=10µÄÇúÏߣ¬ÔÚͬһʱ¿Ì£¬ÄÜ˵Ã÷RµÄÆðʼŨ¶ÈÔ½´ó£¬½µ½âËÙÂÊÔ½´ó

B. ¶Ô±ÈpH=2ºÍpH=7µÄÇúÏߣ¬ËµÃ÷ÈÜÒºËáÐÔԽǿ£¬RµÄ½µ½âËÙÂÊÔ½´ó

C. ÔÚ0~20minÖ®¼ä£¬pH=2ʱRµÄƽ¾ù½µ½âËÙÂÊΪ0.0875¡Á10-4mol¡¤L-1¡¤min-1

D. 50minʱ£¬pH=2ºÍpH=7ʱRµÄ½µ½â°Ù·ÖÂÊÏàµÈ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÖÐѧ»¯Ñ§Öм¸ÖÖ³£¼ûÎïÖʵÄת»¯¹ØϵÈçÏÂͼ(²¿·ÖÑÏÎïδÁгö¡·¡£AÊÇÒ»ÖÖ½ðÊôµ¥ÖÊ£¬DÊÇÒ»ÖַǽðÊô¹ÌÌåµ¥ÖÊ¡£

Çë»Ø´ðÏÂÁÐÎÊÌ⣺

£¨1£©A¡¢C¡¢EµÄ»¯Ñ§Ê½·Ö±ðΪA________C________E________¡£

£¨2£©FµÄŨÈÜÒºÓëA·´Ó¦¹ý³ÌÖÐ,FÌåÏÖµÄÐÔÖÊÓëÏÂÁз´Ó¦ÖÐH2SO4ÌåÏÖµÄÐÔÖÊÍêÈ«ÏàͬµÄÊÇ___________¡£

A.C+2H2SO4(Ũ) CO2¡ü+2SO2¡ü+2H2O

B.Fe+H2SO4=FeSO4+H2¡ü

C.Cu+2H2SO4(Ũ)=CuSO4+ SO2¡ü+2H2O

D.FeO+ H2SO4=FeSO4+H2O

£¨3£©Ð´³ö·´Ó¦E+H2O2¡úFµÄ»¯Ñ§·½³Ìʽ£º_____________¡£

£¨4£©Èô·´Ó¦F+D¡úEתÒƵç×ÓÊýΪ3.01¡Á1023£¬,ÔòÏûºÄDµÄÖÊÁ¿Îª__________¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿¶Ô¿ÉÄæ·´Ó¦N2£«3H22NH3£¬ÓÃv(H2)ºÍv(N2)·Ö±ð±íʾÆäÖеĻ¯ºÏ·´Ó¦µÄËÙÂÊ£¬ÓÃv(NH3)±íʾÆäÖзֽⷴӦµÄËÙÂÊ¡£ÏÂÁÐÄÜ˵Ã÷·´Ó¦ÒѴﵽƽºâ״̬µÄÊÇ(¡¡¡¡)

A.3v(N2)£½v(H2)

B.v(H2)£½v(NH3)

C.2v(H2)£½3v(NH3)

D.v(N2)£½3v(H2)

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÒÑÖª³£ÎÂÏÂij¶þÔªÈõËᣨH2R£©µçÀë³£ÊýΪKa1=5¡Á10-7£¬Ka2=5.6¡Á10-11£¬HClOµÄKa=3.0¡Á10-8£¬»Ø´ðÏÂÁÐÎÊÌ⣺

(1)³£ÎÂÏÂÏòNaClOÈÜÒº¼ÓÈëÉÙÁ¿µÄH2RÈÜÒº·¢Éú·´Ó¦µÄÀë×Ó·½³ÌʽΪ___________________

(2)³£ÎÂÏÂpH£½3µÄHClOÈÜҺŨ¶ÈΪC1£¬pH£½4µÄHClOÈÜҺŨ¶ÈΪC2£¬ÔòC1____10C2£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°£½¡±£©

(3)³£ÎÂÏÂ2mol/LµÄH2RÈÜÒºµÄpHԼΪ_______________

(4)³£ÎÂÏÂ0.1mol/LµÄNaHRÈÜÒºpH__________7£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°£½¡±£©£¬ÈÜÒºÖеÄÒõÑôÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡µÄ˳ÐòΪ___________________________________________

(5)³£ÎÂÏ£¬Ïò10 mL 0.1 mol/LH2RÈÜÒºÖеμÓ0.1 mol¡¤L£­1µÄKOHÈÜÒºV mL

¢ÙÈô»ìºÏºóµÄÈÜÒºÖÐÀë×ÓŨ¶ÈÓÐÈçϹØϵ£ºc(K£«)£½2c(R2-)£«c(HR-)£¬V______10£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°£½¡±£©¡£

¢Úµ±»ìºÏºóµÄÈÜÒºÖÐÀë×ÓŨ¶ÈÓÐÈçϹØϵ£ºc(K£«) £½ c(R2-)£«c(HR-)£«c(H2R)£¬ÔòÈÜÒºÖÐÈÜÖÊΪ_____________£¬V______10£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°£½¡±£©¡£

¢Ûµ±V£½30ʱ£¬»ìºÏºóµÄÈÜÒºÖÐc(OH-)-c(H+)-c(HR-)-2c(H2R)=________mol/L¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿NA±íʾ°¢·ü¼ÓµÂÂÞ³£ÊýµÄÊýÖµ¡£ÒÒÃÑ(CH3CH2OCH2CH3)ÊÇÒ»ÖÖÂé×í¼Á¡£ÖƱ¸ÒÒÃѵķ½·¨ÊÇ2CH3CH2OHCH3CH2OCH2CH3+H2O.ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ

A. 18gH218O·Ö×Óº¬ÖÐ×ÓÊýĿΪ10NA

B. ÿÖƱ¸1molCH3CH218OCH2CH3±ØÐγɹ²¼Û¼üÊýĿΪ4NA

C. 10g46%¾Æ¾«ÈÜÒºÖк¬HÔ­×Ó¸öÊýΪ1.2NA

D. ±ê×¼×´¿öÏÂ,4.48LÒÒ´¼º¬·Ö×ÓÊýΪ0.2NA

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÏÂÁÐʵÑé²Ù×÷¡¢ÏÖÏóÓë½áÂÛ¾ùÕýÈ·µÄÊÇ£¨ £©

Ñ¡Ïî

²Ù×÷

ÏÖÏó

½áÂÛ

A

ÏòFeCl3ºÍKSCN»ìºÏÈÜÒºÖУ¬¼ÓÈëÉÙÁ¿KCl¹ÌÌå

ÈÜÒºÑÕÉ«±ädz

FeCl3+3KSCNFe(SCN)3

+3KClƽºâÏòÄæ·´Ó¦·½ÏòÒƶ¯

B

ÏòËáÐÔ¸ßÃÌËá¼ØÈÜÒºÖмÓÈë¹ýÁ¿µÄFeI2¹ÌÌå

·´Ó¦ºóÈÜÒº±ä»Æ

·´Ó¦ºóÈÜÒºÖдæÔÚ´óÁ¿Fe3+

C

È¡3mL1 mol¡¤L-1NaOHÈÜÒº,ÏȼÓÈë3µÎ1 mol¡¤L-1 MgCl2ÈÜÒº,ÔÙ¼ÓÈë3µÎ1 mol¡¤L-1FeCl3ÈÜÒº

³öÏÖºìºÖÉ«³Áµí

Mg(OH)2µÄKsp±ÈFe(OH)3µÄKsp´ó

D

³£ÎÂÏ£¬ÏòŨ¶È¡¢Ìå»ý¶¼ÏàͬµÄNa2CO3ºÍNaHCO3ÈÜÒºÖи÷µÎ¼Ó1µÎ·Ó̪

±äºì,Ç°ÕߺìÉ«¸üÉî

½áºÏÖÊ×ÓµÄÄÜÁ¦£ºCO32->HCO3-

A. AB. BC. CD. D

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

¡¾ÌâÄ¿¡¿ÒÔ»ÆÌú¿óÉÕÔü(Ö÷Òª³É·ÖΪFe2O3¼°ÉÙÁ¿µÄFeS¡¢SiO2¡¢Cu¡¢Au¡¢AgµÈ)ΪԭÁÏÖƱ¸ÑÕÁÏÌúºì(Fe2O3)¡¢¾§ÌåE£¬»ØÊÕHºÍÖؽðÊô»ìºÏÎïµÄÉú²ú¹¤ÒÕÁ÷³ÌÈçÏÂͼËùʾ£º

Çë°´ÒªÇó»Ø´ðÏÂÁÐÎÊÌ⣺

(1)¹¤ÒÕÁ÷³ÌµÄÖмä²úÎï(NH4)2Fe6(SO4)4(OH)12ÖÐFeµÄ»¯ºÏ¼ÛΪ__________________¡£

FeÔÚÖÜÆÚ±íÖеÄλÖÃΪµÚ________ÖÜÆÚµÚ¢ø×å¡£

(2)½«ÉÕÔüÈܽâÇ°Ðè½øÐС°·ÛËéºÍÌá¸ßζȡ±µÄÄ¿µÄÊÇ________________________¡£¹ý³Ì¢ÙÈܽâÉÕÔüËùÐèÊÔ¼ÁÖÐÈÜÖʵĻ¯Ñ§Ê½Îª__________________¡£

·´Ó¦¢ÚµÄ»¯Ñ§·½³Ìʽ£º______________________________________________________¡£

(3)·´Ó¦¢ÛµÄÄ¿µÄÊÇ____________________________________¡£

ÆøÌåZµÄµç×Óʽ£º__________________¡£

д³ö·´Ó¦¢ÜµÄÀë×Ó·½³Ìʽ£º______________________________________________________¡£

(4)½«»ØÊÕµÄGÈÜÓÚÉÙÁ¿Ë®£¬ËùµÃÈÜÒºÖÐËùÓÐÀë×ÓµÄŨ¶ÈÓÉ´óµ½Ð¡ÒÀ´ÎÊÇ______________¡£

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸