¾«Ó¢¼Ò½ÌÍøijʵÑéС×éÓÃ0.50mol/L NaOHÈÜÒººÍ0.50mol/LÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ£®
¢ñ£®ÅäÖÆ0.50mol/L NaOHÈÜÒº£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå
 
g£®
£¨2£©³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇÏÂÁеÄ
 
£¨ÌîÐòºÅ£©£º
¢ÙÍÐÅÌÌìƽ¡¢¢ÚСÉÕ±­¡¢¢ÛÛá¹øǯ¡¢¢Ü²£°ô¡¢¢ÝÒ©³×¡¢¢ÞÁ¿Í²
¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ£®
£¨1£©ËéÅÝÄ­ËÜÁϵÄ×÷ÓÃÊÇ
 
£®
£¨2£©Ð´³ö¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³ÌʽΪ£¨ÖкÍÈÈΪ57.3kJ/mol£©£º
 
£®
£¨3£©È¡50mL NaOHÈÜÒººÍ30mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í£®
¢ÙÇëÌîдϱíÖеĿհףº
ζÈʵÑé´ÎÊý ÆðʼζÈt1/¡æ ÖÕֹζÈt2/¡æ ζȲîƽ¾ùÖµ
£¨t2-t1£©/¡æ
H2SO4 NaOH ƽ¾ùÖµ
1 26.2 26.0 26.1 30.3
 
2 27.0 27.4 27.2 31.0
3 25.9 25.9 25.9 29.8
4 26.4 26.2 26.3 30.4
¢Ú½üËÆÈÏΪ0.50mol/L NaOHÈÜÒººÍ0.50mol/LÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1g/cm3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc=4.18J/£¨g?¡æ£©£®Ôò²âµÃµÄÖкÍÈÈ¡÷H=
 
£¨È¡Ð¡Êýµãºóһ룩£®
¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©
 
£®
a£®×°Öñ£Î¡¢¸ôÈÈЧ¹û²î£»
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý£»
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖУ»
d£®Î¶ȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²åÈëÏ¡H2SO4²âζȣ®
·ÖÎö£º¢ñ¡¢£¨1£©¸ù¾Ý¹«Ê½m=nM=cVMÀ´¼ÆËãÇâÑõ»¯ÄƵÄÖÊÁ¿£¬µ«ÊÇûÓÐ245mLµÄÈÝÁ¿Æ¿£»
£¨2£©ÇâÑõ»¯ÄƾßÓÐÎüʪÐÔ£¬Ó¦·ÅÔÚСÉÕ±­ÖгÆÁ¿£¬¸ù¾Ý³ÆÁ¿¹ÌÌåÇâÑõ»¯ÄÆËùÓõÄÒÇÆ÷À´»Ø´ð£»
¢ò¡¢£¨1£©¸ù¾ÝÖкÍÈȵÄʵÑéµÄ¹Ø¼üÊDZ£Î£»
£¨2£©¸ù¾ÝËá¼îÖкͷ´Ó¦Éú³É1molҺ̬ˮʱ·Å³ö57.3kJµÄÈÈÁ¿ÊéдÈÈ»¯Ñ§·½³Ìʽ£»
£¨3£©¢ÙÏÈÅжÏζȲîµÄÓÐЧÐÔ£¬È»ºóÇó³öζȲîƽ¾ùÖµ£»
¢ÚÏȸù¾ÝQ=m?c?¡÷T¼ÆËã·´Ó¦·Å³öµÄÈÈÁ¿£¬È»ºó¸ù¾Ý¡÷H=-
Q
n
kJ/mol¼ÆËã³ö·´Ó¦ÈÈ£»
¢Ûa£®×°Öñ£Î¡¢¸ôÈÈЧ¹û²î£¬²âµÃµÄÈÈÁ¿Æ«Ð¡£»
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý£¬»áµ¼ÖÂËùÁ¿µÄÇâÑõ»¯ÄÆÌå»ýÆ«´ó£¬·Å³öµÄÈÈÁ¿Æ«¸ß£»
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖУ¬²âµÃµÄÈÈÁ¿Æ«Ð¡£»
d£®Î¶ȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²åÈëÏ¡H2SO4²âζȣ¬ÁòËáµÄÆðʼζÈÆ«¸ß£®
½â´ð£º½â£º¢ñ¡¢£¨1£©ÐèÒª³ÆÁ¿NaOH¹ÌÌåm=nM=cVM=0.5mol/L¡Á0.5L¡Á40g/mol=5.0g£¬¹Ê´ð°¸Îª£º5.0£»
£¨2£©ÇâÑõ»¯ÄÆÒªÔÚ³ÆÁ¿Æ¿»òÕßСÉÕ±­ÖгÆÁ¿£¬³ÆÁ¿¹ÌÌåÇâÑõ»¯ÄÆËùÓõÄÒÇÆ÷ÓÐÌìƽ¡¢ÉÕ±­ºÍÒ©³×£¬¹Ê´ð°¸Îª£º¢Ù¢Ú¢Ý£»
¢ò£¨1£©ÖкÍÈȵÄʵÑéµÄ¹Ø¼üÊDZ£Î£¬ËùÒÔËéÅÝÄ­ËÜÁϵÄ×÷ÓÃÊÇ·ÀÖ¹Öкͷ´Ó¦Ê±ÈÈÁ¿Ëðʧ£¬¹Ê´ð°¸Îª£º·ÀÖ¹Öкͷ´Ó¦Ê±ÈÈÁ¿Ëðʧ£»
£¨2£©Ï¡Ç¿Ëᡢϡǿ¼î·´Ó¦Éú³É1molҺ̬ˮʱ·Å³ö57.3kJµÄÈÈÁ¿£¬Ï¡ÁòËáºÍÇâÑõ»¯ÄÆÏ¡ÈÜÒº·´Ó¦µÄÈÈ»¯Ñ§·½³ÌʽΪ£º
1
2
H2SO4£¨aq£©+NaOH£¨aq£©=
1
2
Na2SO4£¨aq£©+H2O£¨l£©¡÷H=-57.3kJ/mol£¬
¹Ê´ð°¸Îª£º
1
2
H2SO4£¨aq£©+NaOH£¨aq£©=
1
2
Na2SO4£¨aq£©+H2O£¨l£©¡÷H=-57.3kJ/mol£¬
£¨3£©¢Ù4´ÎζȲî·Ö±ðΪ£º4.2¡æ£¬3.8¡æ£¬3.9¡æ£¬4.1¡æ£¬4×éÊý¾Ý¶¼ÓÐЧ£¬Î¶Ȳîƽ¾ùÖµ=
ËÄ´ÎʵÑéÖÐ(ÖÕֹζÈ-³õʼζÈ)µÄºÍ
4
=
4.2¡æ+3.8¡æ+3.9¡æ+4.1¡æ
4
=4.0¡æ£¬
¹Ê´ð°¸Îª£º4.0£»
¢Ú50mL0.50mol/LÇâÑõ»¯ÄÆÓë30mL0.50mol/LÁòËáÈÜÒº½øÐÐÖкͷ´Ó¦Éú³ÉË®µÄÎïÖʵÄÁ¿Îª0.05L¡Á0.50mol/L=0.025mol£¬ÈÜÒºµÄÖÊÁ¿Îª£º80ml¡Á1g/ml=80g£¬Î¶ȱ仯µÄֵΪ¡÷T=4¡æ£¬ÔòÉú³É0.025molË®·Å³öµÄÈÈÁ¿ÎªQ=m?c?¡÷T=80g¡Á4.18J/£¨g?¡æ£©¡Á4.0¡æ=1337.6J£¬¼´1.3376KJ£¬ËùÒÔʵÑé²âµÃµÄÖкÍÈÈ¡÷H=-
1.3376KJ
0.025mol
=-53.5 kJ/mol£¬
¹Ê´ð°¸Îª£º-53.5kJ/mol£»
¢Ûa£®×°Öñ£Î¡¢¸ôÈÈЧ¹û²î£¬²âµÃµÄÈÈÁ¿Æ«Ð¡£¬ÖкÍÈȵÄÊýֵƫС£¬¹ÊaÕýÈ·£»
b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý£¬»áµ¼ÖÂËùÁ¿µÄÇâÑõ»¯ÄÆÌå»ýÆ«´ó£¬·Å³öµÄÈÈÁ¿Æ«¸ß£¬ÖкÍÈȵÄÊýֵƫ´ó£¬¹Êb´íÎó£»
c£®¾¡Á¿Ò»´Î¿ìËÙ½«NaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖУ¬²»ÔÊÐí·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖУ¬¹ÊcÕýÈ·£»
d£®Î¶ȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²åÈëÏ¡H2SO4²âζȣ¬ÁòËáµÄÆðʼζÈÆ«¸ß£¬²âµÃµÄÈÈÁ¿Æ«Ð¡£¬ÖкÍÈȵÄÊýֵƫС£¬¹ÊdÕýÈ·£®
¹Ê´ð°¸Îª£ºacd£®
µãÆÀ£º±¾Ì⿼²éÈÈ»¯Ñ§·½³ÌʽÒÔ¼°·´Ó¦ÈȵļÆË㣬ÌâÄ¿ÄѶȴó£¬×¢ÒâÀí½âÖкÍÈȵĸÅÄî¡¢°ÑÎÕÈÈ»¯Ñ§·½³ÌʽµÄÊéд·½·¨£¬ÒÔ¼°²â¶¨·´Ó¦ÈȵÄÎó²îµÈÎÊÌ⣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ijʵÑéС×éÓÃ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£

¢ñ£®ÅäÖÆ0.50 mol/L NaOHÈÜÒº

£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå             g¡£

£¨2£©´Óͼ1ÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º                    ¡£

¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼ2Ëùʾ¡£

£¨3£©Ð´³ö¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ£¨ÖкÍÈÈΪ57.3 kJ/mol£©£»

£¨4£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£                                                             

¢ÙÇëÌîдϱíÖеĿհףº

     ζÈ

ʵÑé´ÎÊý

ÆðʼζÈt1/¡æ

ÖÕֹζÈ

t2/¡æ

ζȲîƽ¾ùÖµ

£¨t2-t1£©/¡æ

H2SO4

NaOH

ƽ¾ùÖµ

1

26.2

26.0

26.1

30.1

2

27.0

27.4

27.2

33.3

3

25.9

25.9

25.9

29.8

4

26.4

26.2

26.3

30.4

¢Ú½üËÆÈÏΪ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g/cm3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc=4.18 J/(g¡¤¡æ)¡£ÔòÖкÍÈÈ¡÷H=                      £¨È¡Ð¡Êýµãºóһ룩¡£

¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©        ¡£

a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î

b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý

c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖÐ

d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2012-2013ѧÄêÌì½òÊÐÎäÇåÇøÑî´åÒ»Öи߶þµÚÒ»´ÎÔ¿¼»¯Ñ§ÊÔ¾í£¨´ø½âÎö£© ÌâÐÍ£ºÊµÑéÌâ

£¨12·Ö£©Ä³ÊµÑéС×éÓÃ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£
¢ñ£®ÅäÖÆ0.50 mol¡¤L-1 NaOHÈÜÒº
£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå            g¡£
£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º                   ¡£

¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçÓÒͼËùʾ¡£

¢ò£®ÖкÍÈȵIJⶨ£º
£¨3£©´ÓʵÑé¹ý³ÌÀ´¿´£¬Í¼ÖÐÉÐȱÉÙµÄÁ½ÖÖ²£Á§ÒÇÆ÷ÊÇ    __¡¢________£»
£¨4£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£
¢ÙÇëÌîдϱíÖеĿհףº

¢Ú½üËÆÈÏΪ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g/cm3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc =" 4.18" J/(g¡¤¡æ)¡£ÔòÖкÍÈÈ¡÷H=                 £¨È¡Ð¡Êýµãºóһ룩¡£
¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©       ¡£
a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î
b£®ÅäÖÆ0.50 mol/L NaOHÈÜҺʱ¸©Êӿ̶ÈÏ߶ÁÊý
c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖÐ
d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ
e£®ÓÃÁ¿Í²Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý
£¨5£©ÊµÑéÖиÄÓÃ30 mL 0.50 mol/LµÄÁòËá¸ú50mL 0.55 mol/LµÄNaOHÈÜÒº½øÐз´Ó¦£¬ÓëÉÏÊöʵÑéÏà±È£¬Ëù·Å³öµÄÈÈÁ¿       £¨Ìî¡°ÏàµÈ¡±»ò¡°²»ÏàµÈ¡±£©£¬ËùÇóÖкÍÈȵÄÊýÖµ»á    __________£¨Ìî¡°ÏàµÈ¡±»ò¡°²»ÏàµÈ¡±£©¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2015½ìº£ÄÏÊ¡ÈýÑÇÊи߶þÉÏѧÆÚÆÚÖп¼ÊÔÀí¿Æ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

ijʵÑéС×éÓÃ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/L H2SO4ÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£

¢ñ.ÅäÖÆ0.50 mol/L NaOHÈÜÒº

£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÔòÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå       g¡£

£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷(ÌîÐòºÅ)         ¡£

Ãû³Æ

ÍÐÅÌÌìƽ(´øíÀÂë)

СÉÕ±­

ÛáÛöǯ

²£Á§°ô

Ò©³×

Á¿Í²

ÒÇÆ÷

ÐòºÅ

a

b

c

d

e

f

 

¢ò.²â¶¨ÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ

£¨1£©Ð´³öÏ¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÈÜÒº·´Ó¦±íʾÖкÍÈȵÄÈÈ»¯Ñ§·½³Ìʽ(ÖкÍÈÈÊýֵΪ57.3 kJ¡¤mol£­1)£º_______________________________________¡£

£¨2£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËá½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£

¢ÙÇëÌîдϱíÖеĿհףº

ζÈ

ʵÑé´ÎÊý

³¬Ê¼Î¶Èt1/¡æ

ÖÕֹζÈt2/¡æ

ƽ¾ùζȲî

(t2£­t1)/¡æ

H2SO4

NaOH

ƽ¾ùÖµ

1

26.2

26.0

26.1

30.1

 

2

27.0

27.4

27.2

33.3

3

25.9

25.9

25.9

29.8

4

26.4

26.2

26.3

30.4

 

¢Ú¸ù¾ÝÉÏÊöʵÑéÊý¾Ý¼ÆËã³öµÄÖкÍÈÈΪ53.5 kJ/mol£¬ÕâÓëÖкÍÈȵÄÀíÂÛÖµ57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ(Ìî×Öĸ)______¡£

a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î

b£®ÔÚÁ¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý

c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÏ¡ÁòËáµÄСÉÕ±­ÖÐ

d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2013-2014ѧÄê½­Î÷Ê¡¸ßÈýÉÏѧÆÚµÚËÄ´ÎÔ¿¼»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÌî¿ÕÌâ

ijʵÑéС×éÓÃ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£

¢ñ£®ÅäÖÆ0.50 mol¡¤L-1 NaOHÈÜÒº

£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå¡¡¡¡   ¡¡g¡£ 

£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º¡¡          ¡¡¡¡¡£ 

Ãû³Æ

ÍÐÅÌÌìƽ

(´øíÀÂë)

СÉÕ±­

ÛáÛöǯ

²£Á§°ô

Ò©³×

Á¿Í²

ÒÇÆ÷

ÐòºÅ

a

b

c

d

e

f

¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçͼËùʾ¡£

£¨1£©Ð´³ö¸Ã·´Ó¦ÖкÍÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º£¨ÖкÍÈÈΪ57.3 kJ¡¤mol-1£© ¡¡¡¡                          ¡¡¡¡         ¡¡¡¡     ¡¡¡¡             ¡£

£¨2£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£

ζÈ

ʵÑé´ÎÊý¡¡

ÆðʼζÈt1/¡æ

ÖÕֹζÈt2/¡æ

ζȲî

ƽ¾ùÖµ

(t2-t1)/¡æ

H2SO4

NaOH

ƽ¾ùÖµ

1

26.2

26.0

26.1

29.6

 

2

27.0

27.4

27.2

31.2

 

3

25.9

25.9

25.9

29.8

 

4

26.4

26.2

26.3

30.4

 

 

¢ÙÉϱíÖеÄζȲîƽ¾ùֵΪ¡¡           ¡æ

¢Ú½üËÆÈÏΪ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g¡¤cm-3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc=4.18 J¡¤(g¡¤¡æ)-1¡£ÔòÖкÍÈȦ¤H=¡¡¡¡¡¡          £¨È¡Ð¡Êýµãºóһ룩¡£ 

¢ÛÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ¡¤mol-1ÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©¡¡¡¡¡¡¡¡¡£ 

a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î

b£®Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý

c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖÐ

d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2014½ìÌì½òÊи߶þµÚÒ»´ÎÔ¿¼»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£ºÊµÑéÌâ

£¨12·Ö£©Ä³ÊµÑéС×éÓÃ0.50 mol¡¤L-1 NaOHÈÜÒººÍ0.50 mol¡¤L-1ÁòËáÈÜÒº½øÐÐÖкÍÈȵIJⶨ¡£

¢ñ£®ÅäÖÆ0.50 mol¡¤L-1 NaOHÈÜÒº

£¨1£©ÈôʵÑéÖдóԼҪʹÓÃ245 mL NaOHÈÜÒº£¬ÖÁÉÙÐèÒª³ÆÁ¿NaOH¹ÌÌå             g¡£

£¨2£©´ÓÏÂͼÖÐÑ¡Ôñ³ÆÁ¿NaOH¹ÌÌåËùÐèÒªµÄÒÇÆ÷ÊÇ£¨Ìî×Öĸ£©£º                    ¡£

¢ò£®²â¶¨Ï¡ÁòËáºÍÏ¡ÇâÑõ»¯ÄÆÖкÍÈȵÄʵÑé×°ÖÃÈçÓÒͼËùʾ¡£

¢ò£®ÖкÍÈȵIJⶨ£º

£¨3£©´ÓʵÑé¹ý³ÌÀ´¿´£¬Í¼ÖÐÉÐȱÉÙµÄÁ½ÖÖ²£Á§ÒÇÆ÷ÊÇ    __¡¢________£»

£¨4£©È¡50 mL NaOHÈÜÒººÍ30 mLÁòËáÈÜÒº½øÐÐʵÑ飬ʵÑéÊý¾ÝÈçÏÂ±í¡£

¢Ù ÇëÌîдϱíÖеĿհףº

¢Ú ½üËÆÈÏΪ0.50 mol/L NaOHÈÜÒººÍ0.50 mol/LÁòËáÈÜÒºµÄÃܶȶ¼ÊÇ1 g/cm3£¬ÖкͺóÉú³ÉÈÜÒºµÄ±ÈÈÈÈÝc = 4.18 J/(g¡¤¡æ)¡£ÔòÖкÍÈÈ¡÷H =                 £¨È¡Ð¡Êýµãºóһ룩¡£

¢Û ÉÏÊöʵÑéÊýÖµ½á¹ûÓë57.3 kJ/molÓÐÆ«²î£¬²úÉúÆ«²îµÄÔ­Òò¿ÉÄÜÊÇ£¨Ìî×Öĸ£©        ¡£

 a£®ÊµÑé×°Öñ£Î¡¢¸ôÈÈЧ¹û²î

b£®ÅäÖÆ0.50 mol/L NaOHÈÜҺʱ¸©Êӿ̶ÈÏ߶ÁÊý

c£®·Ö¶à´Î°ÑNaOHÈÜÒºµ¹ÈëÊ¢ÓÐÁòËáµÄСÉÕ±­ÖÐ

d£®ÓÃζȼƲⶨNaOHÈÜÒºÆðʼζȺóÖ±½Ó²â¶¨H2SO4ÈÜÒºµÄζÈ

e£®ÓÃÁ¿Í²Á¿È¡NaOHÈÜÒºµÄÌå»ýʱÑöÊÓ¶ÁÊý

£¨5£©ÊµÑéÖиÄÓÃ30 mL 0.50 mol/LµÄÁòËá¸ú50mL 0.55 mol/LµÄNaOHÈÜÒº½øÐз´Ó¦£¬ÓëÉÏÊöʵÑéÏà±È£¬Ëù·Å³öµÄÈÈÁ¿        £¨Ìî¡°ÏàµÈ¡±»ò¡°²»ÏàµÈ¡±£©£¬ËùÇóÖкÍÈȵÄÊýÖµ»á     __________£¨Ìî¡°ÏàµÈ¡±»ò¡°²»ÏàµÈ¡±£©¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸