ÌâÄ¿ÄÚÈÝ

¡¾ÌâÄ¿¡¿ÓйØÎïÖʵÄÁ¿µÄ¼ÆËãÌî¿Õ£º

£¨1£©2 molÄòËØ[CO(NH2)2]º¬_____________¸öHÔ­×Ó£¬Ëùº¬ÑõÔ­×Ó¸ú__________g H2OËùº¬ÑõÔ­×Ó¸öÊýÏàµÈ¡£

£¨2£©¢Ù±ê×¼×´¿öÏ£¬22.4 L CH4£»¢Ú1.5 mol NH3£»¢Û1.806¡Á1024¸öH2O£»¢Ü±ê×¼×´¿öÏ£¬73 g HCl¡£Ëùº¬HÔ­×Ó¸öÊýÓɶൽÉÙµÄ˳ÐòÊÇ____________________¡£

£¨3£©30.9 g NaRº¬ÓÐNa£«0.3 mol£¬ÔòNaRµÄĦ¶ûÖÊÁ¿Îª_________________¡£

£¨4£©100mLijAl2(SO4)3ÈÜÒºÖУ¬c(Al3£«)£½2.0 mol¡¤L£­1£¬ÔòÆäÖÐc(SO42£­)£½_________mol¡¤L£­1¡£

¡¾´ð°¸¡¿8¡Á6.02¡Á1023 36 ¢Û>¢Ú>¢Ù>¢Ü 103g/mol 3.0

¡¾½âÎö¡¿

£¨1£©´Ó»¯Ñ§Ê½¿´£¬2 molÄòËØ[CO(NH2)2]º¬8molHÔ­×Ó£¬º¬2molÑõÔ­×Ó£¬Ôòº¬ÑõÔ­×Ó¸öÊýÏàµÈµÄH2OҲӦΪ2mol£¬ÓÉ´Ë¿ÉÇó³öÆäÖÊÁ¿¡£

£¨2£©¢Ù±ê×¼×´¿öÏ£¬22.4 L CH4Ϊ1mol£¬º¬4molHÔ­×Ó£»¢Ú1.5 mol NH3º¬4.5molHÔ­×Ó£»¢Û1.806¡Á1024¸öH2Oº¬6molHÔ­×Ó£»¢Ü±ê×¼×´¿öÏ£¬73 g HClΪ2mol£¬º¬2molHÔ­×Ó¡£±È½Ï¿ÉµÃ³öËùº¬HÔ­×Ó¸öÊýÓɶൽÉÙµÄ˳Ðò¡£

£¨3£©30.9 g NaRº¬ÓÐNa£«0.3 mol£¬ÔòNaRΪ0.3mol£¬Ä¦¶ûÖÊÁ¿Îª ¡£

£¨4£©100mLijAl2(SO4)3ÈÜÒºÖУ¬c(Al3£«)£½2.0 mol¡¤L£­1£¬ÔòÆäÖÐc(SO42£­)£½mol¡¤L£­1¡£

£¨1£©´Ó»¯Ñ§Ê½¿´£¬2 molÄòËØ[CO(NH2)2]º¬8molHÔ­×Ó£¬Æä¸öÊýΪ8¡Á6.02¡Á1023£»º¬2molÑõÔ­×Ó£¬Ôòº¬ÑõÔ­×Ó¸öÊýÏàµÈµÄH2OҲӦΪ2mol£¬ÆäÖÊÁ¿Îª2mol¡Á18g/mol=36g¡£´ð°¸Îª£º8¡Á6.02¡Á1023£»36£»

£¨2£©¢Ù±ê×¼×´¿öÏ£¬22.4 L CH4Ϊ1mol£¬º¬4molHÔ­×Ó£»¢Ú1.5 mol NH3º¬4.5molHÔ­×Ó£»¢Û1.806¡Á1024¸öH2Oº¬6molHÔ­×Ó£»¢Ü±ê×¼×´¿öÏ£¬73 g HClΪ2mol£¬º¬2molHÔ­×Ó¡£±È½Ï¿ÉµÃ³öËùº¬HÔ­×Ó¸öÊýÓɶൽÉÙµÄ˳Ðò¢Û>¢Ú>¢Ù>¢Ü¡£´ð°¸Îª£º¢Û>¢Ú>¢Ù>¢Ü£»

£¨3£©30.9 g NaRº¬ÓÐNa£«0.3 mol£¬ÔòNaRΪ0.3mol£¬Ä¦¶ûÖÊÁ¿Îª¡£´ð°¸Îª£º103g/mol£»

£¨4£©100mLijAl2(SO4)3ÈÜÒºÖУ¬c(Al3£«)£½2.0 mol¡¤L£­1£¬ÔòÆäÖÐc(SO42£­)£½mol¡¤L£­1=3.0 mol¡¤L£­1¡£´ð°¸Îª£º3.0¡£

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

¡¾ÌâÄ¿¡¿»¯Ñ§·´Ó¦¹ý³Ì·¢ÉúÎïÖʱ仯ͬʱ³£³£°éÄÜÁ¿±ä»¯£¬ËüÒÔÈÈÄÜÐÎʽ±íÏÖ³öÀ´£¬½Ð·´Ó¦ÈÈ£¬ËüÓкܶàÖÖ£¬È¼ÉÕÈÈ£¬ÖкÍÈȵȡ£

(1)ÏÂÁЦ¤H±íʾÎïÖÊȼÉÕÈȵÄÊÇ_____(ÌH1¡¢¦¤H2»ò¦¤H3£¬ÏÂͬ)£»±íʾÖкÍÈȵÄÊÇ____¡£

A. 2H2(g)+O2(g)=2H2O(l) ¦¤H1

B. C(s)+ O2(g)=CO(g) ¦¤H2

C. CH4(g)+2O2(g)=CO2(g)+2H2O(l) ¦¤H3

D. C(s)+ O2(g)=CO2(g) ¦¤H4

E. C6H12O6(s)+6O2(g)=6CO2(g) +6H2O(l) ¦¤H5

F.NaOH(aq)+HCl(aq)=NaCl(aq)+H2O(l) ¦¤H6

G.2NaOH(aq)+H2SO4(aq)=NaSO4(aq)+2H2O(l) ¦¤H7

(2)ÒÑÖª15gÒÒÍéÍêȫȼÉÕÉú³ÉCO2ºÍҺ̬ˮ£¬·ÅÈÈakJ£¬ÏÂÁÐÈÈ»¯Ñ§·½³ÌʽÕýÈ·ÊÇ£¨________£©¡£

A. C2H6(g)+ O2(g)=2CO2(g)+3H2O(l) ¦¤H1=+2a kJ¡¤mol-1

B. C2H6(g)+ O2(g)=2CO2(g)+3H2O(l) ¦¤H1=-2a kJ¡¤mol-1

C. 2C2H6(g)+ 7O2(g)=4CO2(g)+6H2O(l) ¦¤H1=-4a kJ¡¤mol-1

D. 2C2H6(g)+ 7O2(g)=4CO2(g)+6H2O(l) ¦¤H1=+4a kJ¡¤mol-1

(3)³ä·ÖȼÉÕÒ»¶¨Á¿¶¡Íé(C4H10)·Å³öÈÈÁ¿161.9kJ£¬ÇÒÉú³ÉµÄCO2Ç¡ºÃÄÜÓë2.5mol/L 100mLµÄÇâÑõ»¯±µÈÜÒºÍêÈ«·´Ó¦Éú³É³Áµí£¬ÔòȼÉÕ1mol¶¡Íé·Å³öÄÜÁ¿Îª__________¡£

(4)½øÒ»²½Ñо¿±íÃ÷£¬»¯Ñ§·´Ó¦ÄÜÁ¿±ä»¯Óë¼üÄÜÓйأ¬¼üÄܼòµ¥Àí½â¶Ï¿ª1mol»¯Ñ§¼üÎüÊÕÄÜÁ¿¡£Ï±íÊǼüÄÜÊý¾Ý£º

»¯Ñ§¼ü

P¡ªP

P¡ªO

O=O

P=O

¼üÄÜ(kJ¡¤mol-1)

197

360

499

X

ÒÑÖª°×Á×ȼÉÕÈÈΪ2378.0kJ¡¤mol-1£¬ÔòX=__________¡£

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø