ÌâÄ¿ÄÚÈÝ
ϱíÊÇ25¡ãCʱijЩÑεÄŨ¶È»ý³£ÊýºÍÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©
»¯Ñ§Ê½ |
AgCl |
Ag2CrO4 |
CH3COOH |
HClO |
H2CO3 |
KSP»òKa |
KSP=1.8¡Á10-10 |
KSP=2.0¡Á10-12 |
Ka=1.8¡Á10-5 |
Ka=3.0¡Á10-8 |
Ka1=4.1¡Á10-7 Ka2=5.6¡Á10-11 |
A£®ÏàͬŨ¶ÈCH3COONaºÍNaClOµÄ»ìºÏÒºÖУ¬¸÷Àë×ÓŨ¶ÈµÄ´óС¹ØϵÊÇ
c£¨Na+£©>c£¨ClO-£©>c£¨CH3COO-£©>c£¨OH-£©>c£¨H+£©
B£®Ì¼ËáÄÆÈÜÒºÖеμÓÉÙÁ¿ÂÈË®µÄÀë×Ó·½³ÌʽΪCO32-+Cl2=HCO3-+Cl-+HClO
C£®Ïò0.1mol¡¤L-1CH3COOHÈÜÒºÖеμÓNaOHÈÜÒºÖÁc£¨CH3COOH£©£ºc£¨CH3COO-£©=5£º9£¬´ËʱÈÜÒºpH=5
D£®ÏòŨ¶È¾ùΪ1¡Á10-3mol¡¤L-1µÄKClºÍK2CrO4»ìºÏÒºÖеμÓ1¡Á10-3mol¡¤L-1µÄAgNO3ÈÜÒº£¬CrO42-ÏÈÐγɳÁµí
C
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£º¸ù¾ÝµçÀëƽºâ³£Êý¿ÉÖªËáÐÔÇ¿Èõ˳ÐòΪ£ºCH3COOH£¾HClO£¬ËáÐÔÔ½Èõ£¬¶ÔÓ¦ÄÆÑÎÖÐËá¸ùÀë×ÓË®½â³Ì¶ÈÔ½´ó£¬ÈÜÒºµÄpHÔ½´ó£¬ËùÒÔÏàͬŨ¶ÈCH3COONaºÍNaClOµÄ»ìºÏÒºÖУ¬¸÷Àë×ÓŨ¶ÈµÄ´óС¹ØϵÊÇc£¨Na+£©£¾ c£¨CH3COO-£©£¾c£¨ClO-£©£¾ c£¨OH-£©£¾c£¨H+£©£¬¹ÊA´íÎó£»Ì¼ËáµÄËáÐÔÇ¿ÓÚ´ÎÂÈËáµÄ£¬µ«´ÎÂÈËáµÄËáÐÔÇ¿ÓÚHCO3££¬ËùÒÔ̼ËáÄÆÈÜÒºÖеμÓÉÙÁ¿ÂÈË®µÄÀë×Ó·½³ÌʽΪH2O£«CO32-+Cl2£½HCO3-+Cl-+HClO£¬ËùÒÔB²»ÕýÈ·£»Ñ¡ÏîCÖиù¾ÝµçÀëƽºâ³£Êý¿ÉÖª£¬£¬ÓÉÓÚc£¨CH3COOH£©£ºc£¨CH3COO-£©£½5£º9£¬ËùÒÔÇâÀë×ÓµÄŨ¶ÈÊÇ10£5mol/L£¬ÔòpH£½5£¬¹ÊCÕýÈ·£»µ±ÈÜÒºÖÐÂÈÀë×ÓºÍCrO42£Å¨¶È¾ùΪ0.001mol/Lʱ£¬ÒªÉú³ÉÏàÓ¦µÄ³Áµí£¬ÔòÐèÒªÒøÀë×ÓµÄŨ¶È·Ö±ðÊÇ¡¢4.47¡Á10£5mol/L£¬ËùÒÔÊ×ÏÈÎö³öµÄ³ÁµíÊÇÂÈ»¯Òø£¬Ñ¡ÏîD²»ÕýÈ·£¬´ð°¸Ñ¡C¡£
¿¼µã£º¿¼²éÈõµç½âÖʵĵçÀëƽºâ¡¢ÈܶȻý³£ÊýµÄÓ¦ÓÃ
µãÆÀ£º¸ÃÌâÊÇÖеÈÄѶȵÄÊÔÌ⣬ÊÔÌâ×ÛºÏÐÔÇ¿£¬Ìù½ü¸ß¿¼£¬ÓÐÀûÓÚµ÷¶¯Ñ§ÉúµÄѧϰÐËȤ£¬¼¤·¢Ñ§ÉúµÄѧϰ»ý¼«ÐÔ¡£ÔÚ½â´ðÉæ¼°Àë×ÓŨ¶È´óС±È½ÏʱҪעÒâÍâ½çÌõ¼þ¶ÔµçÀëƽºâµÄÓ°Ï죬ÀûÓõçºÉÊغ㡢ÖÊÁ¿Êغã½â´ð´ËÀàÌâÄ¿¡£
£¨2012?Ìì½òÄ£Ä⣩ϱíÊÇ25¡ãCʱijЩÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
|
£¨2012?Õã½Ä£Ä⣩ϱíÊÇ25¡ãCʱijЩÑεÄŨ¶È»ý³£ÊýºÍÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©
|
ϱíÊÇ25¡ãCʱijЩÑεÄŨ¶È»ý³£ÊýºÍÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©
»¯Ñ§Ê½ | AgCl | Ag2CrO4 | CH3COOH | HClO | H2CO3 |
KSP»òKa | KSP=1.8¡Á10-10 | KSP=2.0¡Á10-12 | Ka=1.8¡Á10-5 | Ka=3.0¡Á10-8 | Ka1=4.1¡Á10-7 Ka2=5.6¡Á10-11 |
c£¨Na+£©>c£¨ClO-£©>c£¨CH3COO-£©>c£¨OH-£©>c£¨H+£©
B£®Ì¼ËáÄÆÈÜÒºÖеμÓÉÙÁ¿ÂÈË®µÄÀë×Ó·½³ÌʽΪCO32-+Cl2=HCO3-+Cl-+HClO
C£®Ïò0.1mol¡¤L-1CH3COOHÈÜÒºÖеμÓNaOHÈÜÒºÖÁc£¨CH3COOH£©£ºc£¨CH3COO-£©=5£º9£¬´ËʱÈÜÒºpH=5
D£®ÏòŨ¶È¾ùΪ1¡Á10-3mol¡¤L-1µÄKClºÍK2CrO4»ìºÏÒºÖеμÓ1¡Á10-3mol¡¤L-1µÄAgNO3ÈÜÒº£¬CrO42-ÏÈÐγɳÁµí
ϱíÊÇ25¡ãCʱijЩÑεÄŨ¶È»ý³£ÊýºÍÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ£¨ £©
»¯Ñ§Ê½ |
CH3COOH |
HClO |
H2CO3 |
Ka |
Ka=1.8¡Á10-5 |
Ka=3.0¡Á10-8 |
Ka1=4.1¡Á10-7 Ka2=5.6¡Á10-11 |
A£®µÈÎïÖʵÄÁ¿Å¨¶ÈµÄNaClOºÍNaHCO3 »ìºÏÈÜÒºÖÐ c(HClO)£«c(ClO£)£½c(HCO3£)£«c(CO32£)£«c(H2CO3)
B£®Ïò´ÎÂÈËáÄÆÈÜÒºÖÐͨÈëÉÙÁ¿¶þÑõ»¯Ì¼ÆøÌåµÄÀë×Ó·½³ÌʽΪClO-+CO2+H2O=CO32-+2HClO
C£®25¡æʱ£¬¼×»ù³ÈµÎÈë0.1mol/LµÄ´ÎÂÈËáÈÜÒºÖУ¬ÈÜÒº³ÊºìÉ«
D£®½áºÏH+µÄÄÜÁ¦£ºCH3COO-£¾ClO-£¾CO32-
ϱíÊÇ25¡ãCʱijЩÑεÄŨ¶È»ý³£ÊýºÍÈõËáµÄµçÀëƽºâ³£Êý£¬ÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ
»¯Ñ§Ê½ |
AgCl |
Ag2CrO4 |
CH3COOH |
HClO |
H2CO3 |
KSP»òKa |
KSP=1.8¡Á10-10 |
KSP=2.0¡Á10-12 |
Ka=1.8¡Á10-5 |
Ka=3.0¡Á10-8 |
Ka1=4.1¡Á10-7 Ka2=5.6¡Á10-11 |
A£®ÏàͬŨ¶ÈCH3COONaºÍNaClOµÄ»ìºÏÒºÖУ¬¸÷Àë×ÓŨ¶ÈµÄ´óС¹ØϵÊÇ
c£¨Na+£©>c£¨ClO-£©>c£¨CH3COO-£©>c£¨OH-£©>c£¨H+£©
B£®Ì¼ËáÄÆÈÜÒºÖеμÓÉÙÁ¿ÂÈË®µÄÀë×Ó·½³ÌʽΪCO32-+Cl2=HCO3-+Cl-+HClO
C£®Ïò0.1mol¡¤L-1CH3COOHÈÜÒºÖеμÓNaOHÈÜÒºÖÁc£¨CH3COOH£©£ºc£¨CH3COO-£©=5£º9£¬´ËʱÈÜÒºpH=5
D£®ÏòŨ¶È¾ùΪ1¡Á10-3mol¡¤L-1µÄKClºÍK2CrO4»ìºÏÒºÖеμÓ1¡Á10-3mol¡¤L-1µÄAgNO3ÈÜÒº£¬CrO42-ÏÈÐγɳÁµí