ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Á×»¯ÂÁ¡¢Á×»¯Ð¿¡¢Á×»¯¸ÆÊÇÄ¿Ç°³£¼ûµÄѬÕôɱ³æ¼Á£¬¶¼ÄÜÓëË®»òËá·´Ó¦²úÉúÓж¾ÆøÌåì¢(PH3)£¬PH3¾ßÓнÏÇ¿µÄ»¹ÔÐÔ£¬ÄÜÔÚ¿ÕÆøÖÐ×Ôȼ¡£ÎÀÉú°²È«±ê×¼¹æ¶¨£¬Á¸Ê³ÖÐÁ×»¯Îï(ÒÔPH3¼Æ)º¬Á¿¡Ü0£®05mg/kg¡£Ä³»¯Ñ§ÐËȤС×éµÄͬѧͨ¹ýÏÂÁз½·¨¶ÔÁ¸Ê³ÖвÐÁôÁ×»¯ÎﺬÁ¿½øÐÐÑо¿£º
£¨²Ù×÷Á÷³Ì£© °²×°ÎüÊÕ×°ÖáúPH3µÄ²úÉúÓëÎüÊÕ¡úתÒÆKMnO4ÎüÊÕÈÜÒº¡úÑÇÁòËá±ê×¼ÈÜÒºµÎ¶¨
£¨ÊµÑé×°Öã©
CÖÐÊ¢ÓÐ200gÔÁ¸£¬D¡¢E¡¢F ¸÷Ê¢×°1.00mLŨ¶ÈΪ1£®00¡Á10£3mol/LµÄKMnO4 ÈÜÒº(H2SO4 Ëữ)¡£
Çë»Ø´ðÏÂÁÐÓйØÎÊÌ⣺
(1)ÒÇÆ÷GµÄÃû³ÆÊÇ_______¡£ÒÔÁ×»¯ÂÁΪÀý£¬Ð´³öÁ×»¯ÂÁÓëË®·´Ó¦µÄ»¯Ñ§·½³Ìʽ ________________¡£
(2)¼ì²éC×°ÖÃÆøÃÜÐԵķ½·¨ÊÇ£ºÓÃֹˮ¼Ð¼Ð½ôC×°ÖÃ___________£¬È¡ÏÂÉÏ¿Ú»îÈû£¬Â©¶·ÖмÓÈëË®£¬´ò¿ªÏ¿ÚÐýÈû£¬¹Û²ìµ½ ___________________£¬±íÃ÷×°ÖÃÆøÃÜÐÔÁ¼ºÃ¡£
(3)ʵÑé¹ý³ÌÖУ¬ÓóéÆø±Ã·´¸´³éÆøµÄÄ¿µÄÊÇ ______________________________¡£
(4)AÖÐÊ¢×°KMnO4ÈÜÒºÊÇΪ³ýÈ¥¿ÕÆøÖпÉÄܺ¬ÓÐµÄ ___________ (Ìî¡°»¹Ô¡±»ò¡°Ñõ»¯¡±)ÐÔÆøÌ壻BÖÐÊ¢×°ÐÂÖÆFeSO4ÈÜÒºµÄ×÷ÓÃÊÇ _______________________ £»
(5)ÒÑÖª D¡¢E¡¢F Öз¢Éúͬһ·´Ó¦£¬ÊµÑéÖÐ PH3±»Ñõ»¯³ÉÁ×Ëᣬд³öËù·¢ÉúµÄ»¯Ñ§·´Ó¦·½³Ìʽ ____ £»ÊÕ¼¯×°ÖÃD¡¢E¡¢FËùµÃÎüÊÕÒº£¬²¢Ï´µÓD¡¢E¡¢F£¬½«ÎüÊÕÒº¡¢Ï´µÓÒºÒ»²¢ÖÃÓÚ׶ÐÎÆ¿ÖУ¬¼ÓˮϡÊÍÖÁ25mL£¬ÓÃŨ¶ÈΪ5¡Á10-4 mol/LNa2SO3±ê×¼ÈÜÒºµÎ¶¨Ê£ÓàµÄKMnO4ÈÜÒº£¬ÏûºÄNa2SO3±ê×¼ÈÜÒº11.00mL£¬Ôò¸ÃÔÁ¸ÖÐÁ×»¯Îï(ÒÔPH3¼Æ)µÄº¬Á¿Îª_____mg/kg¡£
¡¾´ð°¸¡¿£¨1£©·ÖҺ©¶· AlP£«3H2O£½Al(OH)3¡ý£«PH3¡ü
£¨2£©×óÓÒÁ½¶ËµÄÏðƤ¹Ü Ë®¿ªÊ¼ÏµÎÒ»¶Îʱ¼äºó£¬²»ÔÙÁ¬ÐøϵÎ
£¨3£© ±£Ö¤Éú³ÉµÄPH3È«²¿±»ËáÐÔKMnO4ÈÜÒºÎüÊÕ
£¨4£© »¹Ô ³ýÈ¥¿ÕÆøÖеÄO2
£¨5£©5PH3£«8KMnO4£«12H2SO4£½5H3PO4£«8MnSO4£«4K2SO4£«12H2O 0.085
¡¾½âÎö¡¿
ÊÔÌ⣨1£©ÒÇÆ÷GµÄÃû³ÆÊÇ·ÖҺ©¶·£»Á×»¯ÂÁÓëË®·¢ÉúË®½â·´Ó¦µÄ»¯Ñ§·½³ÌʽAlP£«3H2O£½Al(OH)3¡ý£«PH3¡ü£»£¨2£©¼ì²éC×°ÖÃÆøÃÜÐԵķ½·¨ÊÇ£ºÓÃֹˮ¼Ð¼Ð½ôC×°ÖÃ×óÓÒÁ½¶ËµÄÏðƤ¹Ü£¬È¡ÏÂÉÏ¿Ú»îÈû£¬Â©¶·ÖмÓÈëË®£¬´ò¿ªÏ¿ÚÐýÈû£¬¹Û²ìµ½Ë®¿ªÊ¼ÏµÎÒ»¶Îʱ¼äºó£¬²»ÔÙÁ¬ÐøÏµΣ¬±íÃ÷×°ÖÃÆøÃÜÐÔÁ¼ºÃ£»£¨3£©ÊµÑé¹ý³ÌÖУ¬ÓóéÆø±Ã·´¸´³éÆøµÄÄ¿µÄÊDZ£Ö¤Éú³ÉµÄPH3È«²¿±»ËáÐÔKMnO4ÈÜÒºÎüÊÕ£»£¨4£©AÖÐÊ¢×°KMnO4ÈÜÒºÊÇΪ³ýÈ¥¿ÕÆøÖпÉÄܺ¬ÓеĻ¹ÔÐÔÆøÌ壬·ÀÖ¹²âµÃµÄ½á¹ûÆ«¸ß£»BÖÐÊ¢×°ÐÂÖÆFeSO4ÈÜÒºµÄ×÷ÓÃÊdzýÈ¥¿ÕÆøÖеÄO2£¬·ÀÖ¹²âµÃµÄ½á¹ûÆ«µÍ£»£¨5£©PH3±»Ñõ»¯³ÉÁ×ËáµÄ»¯Ñ§·´Ó¦·½³Ìʽ£º5PH3£«8KMnO4£«12H2SO4£½5H3PO4£«8MnSO4£«4K2SO4£«12H2O£»ÊÕ¼¯×°ÖÃD¡¢E¡¢FËùµÃÎüÊÕÒº£¬²¢Ï´µÓD¡¢E¡¢F£¬½«ÎüÊÕÒº¡¢Ï´µÓÒºÒ»²¢ÖÃÓÚ׶ÐÎÆ¿ÖУ¬¼ÓˮϡÊÍÖÁ25mL£¬ÓÃŨ¶ÈΪ5¡Á10£4mol/LNa2SO3±ê×¼ÈÜÒºµÎ¶¨Ê£ÓàµÄKMnO4ÈÜÒº£¬ÏûºÄNa2SO3±ê×¼ÈÜÒº11.00mL£¬Ôò¸ÃÔÁ¸ÖÐÁ×»¯ÎÒÔPH3¼Æ£©µÄº¬Á¿Îª mg/kg¡£1.00mL¡Á10£3¡Á1.00¡Á10£3mol/L¡Á3=3.00mL¡Á10£6mol£»¸ù¾Ý
£¬Na2SO3ÏûºÄKMnO4µÄÎïÖʵÄÁ¿Îª11.00mL¡Á10£3¡Á5¡Á10£4mol/L
2.2¡Á10£6mol£»PH3ÏûºÄKMnO4µÄÎïÖʵÄÁ¿Îª3.00mL¡Á10£6mol£2.2¡Á10£6mol=8¡Á10£7mol£»PH3µÄÎïÖʵÄÁ¿Îª8¡Á10£7mol
5¡Á10£7mol£»Ôò¸ÃÔÁ¸ÖÐÁ×»¯ÎÒÔPH3¼Æ£©µÄº¬Á¿Îª0.085mg/kg¡£
![](http://thumb2018.1010pic.com/images/loading.gif)
¡¾ÌâÄ¿¡¿ÔÚ100mLijÑÎËáÖмÓÈë»ìºÏ¾ùÔȵÄNaHCO3ºÍKHCO3¹ÌÌå·ÛÄ©£¬³ä·Ö·´Ó¦ºóʹÆøÌåÈ«²¿Òݳö£¬¼ÓÈë¹ÌÌåÓë²úÉúÆøÌåÌå»ý£¨±ê×¼×´¿öÏ£©µÄ¹ØϵÈçÏÂ±í£º
¹ÌÌåÖÊÁ¿/g | 11.25 | 45.00 | >45.00 |
ÆøÌåÌå»ý/L | 2.80 | 11.2 | 11.2 |
Çë»Ø´ð£º
£¨1£©ÑÎËáµÄÎïÖʵÄÁ¿Å¨¶ÈÊÇ_____¡£
£¨2£©Èô¹ÌÌå·ÛÄ©µÄÖÊÁ¿Îªx g£¬¸ÃÑÎËáµÄÌå»ýΪ140mL£¬²úÉúµÄCO2Ìå»ýΪyL£¨±ê×¼×´¿öÏ£©¡£ÊÔд³ö·ÛÄ©ÖÊÁ¿x(g)Óë²úÉúCO2Ìå»ýy(L)Ö®¼äµÄ¹ØϵÊÇ______¡£
¡¾ÌâÄ¿¡¿ÏÂÁÐÓйØÎïÖʼìÑéµÄʵÑé½áÂÛÕýÈ·µÄÊÇ
Ñ¡Ïî | ʵÑé²Ù×÷¼°ÏÖÏó | ʵÑé½áÂÛ |
A | ÏòijÈÜÒºÖмÓÈëÑÎËáËữµÄÂÈ»¯±µÈÜÒº£¬Óа×É«³ÁµíÉú³É | ¸ÃÈÜÒºÖÐÒ»¶¨º¬ÓÐ |
B | ÏòijÈÜÒºÖмÓÈë2µÎKSCNÈÜÒº£¬ÈÜÒº²»ÏÔºìÉ«£»ÔÙÏòÈÜÒºÖмÓÈ뼸µÎÐÂÖƵÄÂÈË®£¬ÈÜÒº±äΪºìÉ« | ¸ÃÈÜÒºÖÐÒ»¶¨º¬ÓÐ |
C | ½«Ä³ÆøÌåͨÈëÆ·ºìÈÜÒºÖУ¬Æ·ºìÈÜÒºÍÊÉ« | ¸ÃÆøÌåÒ»¶¨Îª |
D | ½«ÉÙÁ¿ÓлúÎïµÎ¼Óµ½ÐÂÖÆÇâÑõ»¯ÍÈÜÒºÖУ¬³ä·ÖÕñµ´£¬Î´¼ûºìÉ«³ÁµíÉú³É | ¸ÃÓлúÎï²»º¬È©»ù |
A. AB. BC. CD. D