ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿¢ñ.ÏÂÁÐ A¡¢B¡¢C¡¢D ÊÇÖÐѧ³£¼ûµÄ»ìºÏÎï·ÖÀë»òÌá´¿µÄ»ù±¾×°Öá£
Çë¸ù¾Ý»ìºÏÎï·ÖÀë»òÌá´¿µÄÔÀí£¬»Ø´ðÔÚÏÂÁÐʵÑéÖÐÐèҪʹÓÃÄÄÖÖ×°Ö᣽« A¡¢B¡¢C¡¢D ÌîÈëÊʵ±µÄ¿Õ¸ñÖС£
(1)´ÓµâË®ÖÐÌáÈ¡µâ____________________£»
(2)·ÖÀë¾Æ¾«ÓëË®µÄ»ìºÏÎï____________________£»
(3)³ýÈ¥´ÖÑÎÖеÄÄàɳÖƾ«ÑÎ________________¡£
¢ò.ʵÑéÊÒÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈÈÜÒºÒªÓõ½Á¿Í²ºÍͼ¢òÒÇÆ÷µÈ¡£ÅäÖÆijŨ¶ÈµÄÏ¡ÁòËᣬÓà 10 mL Á¿Í²Á¿È¡Å¨ÁòËáµÄÌå»ýÈçͼ¢ñËùʾ£¬
(1)A Óë B£¬B Óë C ¿Ì¶È¼äÏà²î 1mL£¬Èç¹û¿Ì¶È A Ϊ8£¬Á¿Í²ÖÐŨÁòËáµÄÌå»ýÊÇ________mL¡£
(2)ÒªÓà CuSO4¡¤5H2O ¾§ÌåÅäÖÆ 480mL 0.1mol/L CuSO4 ÈÜÒº£¬Ó¦¸ÃÓÃÍÐÅÌÌìƽ³ÆÈ¡CuSO4¡¤5H2O____
(3)ͼ¢òËùʾÒÇÆ÷µÄÃû³ÆÊÇ_________ÒÇÆ÷ÓÐÏÂÁÐÇé¿ö£¬¶ÔÅäÖÆÈÜÒºµÄŨ¶ÈÓкÎÓ°Ï죿(Ìî¡°Æ«¸ß¡±¡¢ ¡°Æ«µÍ¡±»ò¡°ÎÞÓ°Ï족)
A£®ÒÇÆ÷ÖÐÓÐÉÙÁ¿ÕôÁóË®______________£»
B£®¶¨ÈÝʱ¼ÓË®³¬¹ý¿Ì¶ÈÏß______________£»
C£®×îÖÕ¶¨ÈÝʱ¸©ÊÓ¹Û²ìÒºÃæ____________¡£
¡¾´ð°¸¡¿C£¨»òCA£© A BD 7.2 12.5g 500mlÈÝÁ¿Æ¿ ÎÞÓ°Ïì Æ«µÍ Æ«¸ß
¡¾½âÎö¡¿
A¡¢B¡¢C¡¢D·Ö±ðÊÇÕôÁ󣬹ýÂË£¬ÝÍÈ¡ºÍ·ÖÒº£¬Õô·¢²Ù×÷£¬Ñ¡Ôñ×°ÖÃʱÐèÒª¸ù¾ÝÎïÖʵÄÐÔÖÊÌص㣬ѡÔñºÏÊʵķÖÀë×°Öá£
¢ñ.£¨1£©´ÓµâË®ÖÐÌáÈ¡µâ£¬¿ÉÒÔÀûÓõⵥÖÊÔÚÓлúÎïÖÐÈܽâ¶È±ÈÔÚË®Öдó£¬ÓлúÎïÓëË®»¥²»ÏàÈܵÄÐÔÖÊ£¬ÓÃCCl4×÷ÝÍÈ¡¼ÁÝÍÈ¡£¬Ñ¡ÔñµÄ×°ÖÃÊÇC£»ÝÍÈ¡ºóµÃµ½µÄµâµÄÓлúÈÜÒº£¬¸ù¾Ý¶þÕ߷еãµÄ²»Í¬Ñ¡Ôñ×°ÖÃA£¬ÓÃÕôÁóµÄ·½·¨ÔÚ½øÐзÖÀ룻
£¨2£©ÓÉÓھƾ«ÓëË®ÊÇ»¥Èܵķе㲻ͬµÄÒºÌåµÄ»ìºÏÎ¿ÉÒÔÓÃÕôÁóµÄ·½·¨£¬Ñ¡Ôñ×°ÖÃA·ÖÀ룻
£¨3£©ÄàɳÊÇÄÑÈÜÐÔµÄÎïÖÊ£¬¶øNaClÊÇ¿ÉÈÜÐÔµÄÎïÖÊ£¬·ÖÀëÄÑÈÜÐԵĹÌÌåÓë¿ÉÈÜÐÔµÄÒºÌå»ìºÏÎ¿ÉÒÔÓùýÂ˵ķ½·¨£¬Ñ¡Ôñ×°ÖÃB³ýÈ¥Äàɳ£¬È»ºóÔÙ¸ù¾ÝNaClµÄÈܽâ¶ÈÊÜζȵÄÓ°Ïì±ä»¯²»´ó£¬ÓÃÕô·¢ÈܼÁµÄ·½·¨£¬Ñ¡Ôñ×°ÖÃDÖƾ«ÑΣ»
¢ò. ʵÑéÊÒÅäÖÆÒ»¶¨ÎïÖʵÄÁ¿Å¨¶ÈÁòËáÈÜÒºÒªÓõ½µÄÒÇÆ÷£¬Á¿Í²£¬ÈÝÁ¿Æ¿£¬²£Á§°ô£¬½ºÍ·µÎ¹Ü£¬ÉÕ±µÈ£¬²Ù×÷²½ÖèÓмÆËã¡¢³ÆÁ¿¡¢Èܽ⡢תÒÆ¡¢Ï´µÓ¡¢¶¨ÈÝ¡¢Ò¡ÔȵȲÙ×÷£»
(1)Á¿Í²Ð¡¿Ì¶ÈÔÚÏ£¬´ó¿Ì¶ÈÔÚÉÏ£¬Á¿Í²¾«È·¶ÈÊÇ0.1mL£¬ÓÉÓÚAÊÇ8.0mL£¬BÊÇ7.0mL£¬ÔÚA¡¢BÖ®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñÊÇ0.2mL£¬ËùÒÔÁ¿Í²ÖÐŨÁòËáµÄÌå»ýÊÇ7.2mL£»
(2)ÅäÖÆÈÜҺʱµÄ¼ÆË㣬ÀûÓÃm=nM=cvM= 0. 1mol/L¡Á0.5L¡Á250g/mol=12.5g£»
(3)Îó²îµÄ·ÖÎöÀûÓÃc=£¬nƫС£¬v²»±äʱ£¬Å¨¶ÈÆ«µÍ£»n²»±ä£¬vÆ«´ó£¬cÆ«µÍ¡£
¢ñ£®£¨1£©´ÓµâË®ÖÐÌáÈ¡µâ£¬¿ÉÒÔÀûÓõⵥÖÊÔÚÓлúÎïÖÐÈܽâ¶È±ÈÔÚË®Öдó£¬ÓлúÎïÓëË®»¥²»ÏàÈܵÄÐÔÖÊ£¬ÓÃCCl4×÷ÝÍÈ¡¼ÁÝÍÈ¡£¬Ñ¡ÔñµÄ×°ÖÃÊÇC£»ÝÍÈ¡ºóµÃµ½µÄµâµÄÓлúÈÜÒº£¬¸ù¾Ý¶þÕ߷еãµÄ²»Í¬Ñ¡Ôñ×°ÖÃA£¬ÓÃÕôÁóµÄ·½·¨ÔÚ½øÐзÖÀ룬
¹Ê´ð°¸Îª£ºC£¨»òCA£©£»
£¨2£©ÓÉÓھƾ«ÓëË®ÊÇ»¥Èܵķе㲻ͬµÄÒºÌåµÄ»ìºÏÎ¿ÉÒÔÓÃÕôÁóµÄ·½·¨£¬Ñ¡Ôñ×°ÖÃA·ÖÀ룬
¹Ê´ð°¸Îª£ºA£»
£¨3£©ÄàɳÊÇÄÑÈÜÐÔµÄÎïÖÊ£¬¶øNaClÊÇ¿ÉÈÜÐÔµÄÎïÖÊ£¬·ÖÀëÄÑÈÜÐԵĹÌÌåÓë¿ÉÈÜÐÔµÄÒºÌå»ìºÏÎ¡£¿ÉÒÔÓùýÂ˵ķ½·¨£¬Ñ¡Ôñ×°ÖÃB³ýÈ¥Äàɳ£¬È»ºóÔÙ¸ù¾ÝNaClµÄÈܽâ¶ÈÊÜζȵÄÓ°Ïì±ä»¯²»´ó£¬ÓÃÕô·¢ÈܼÁµÄ·½·¨£¬Ñ¡Ôñ×°ÖÃDÖƾ«ÑÎ
¹Ê´ð°¸Îª£ºBD£»
¢ò£¨1£©Á¿Í²Ð¡¿Ì¶ÈÔÚÏ£¬´ó¿Ì¶ÈÔÚÉÏ£¬Á¿Í²¾«È·¶ÈÊÇ0.1mL£¬ÓÉÓÚAÊÇ8.0mL£¬BÊÇ7.0mL£¬ÔÚA¡¢BÖ®¼äÓÐ5¸öС¸ñ£¬Ò»¸öС¸ñÊÇ0.2mL£¬ËùÒÔÁ¿Í²ÖÐŨÁòËáµÄÌå»ýÊÇ7.2mL£¬
¹Ê´ð°¸Îª£º7.2£»
£¨2£©ÒªÓÃCuSO4¡¤5H2O¾§ÌåÅäÖÆ480mL 0. 1mol/L CuSO4ÈÜÒº£¬ÐèÓÃ500 mLÈÝÁ¿Æ¿£¬¼´ÅäÖÃ500mL 0. 1mol/L CuSO4ÈÜÒºÈÜÖʵÄÎïÖʵÄÁ¿ÊÇn(CuSO4)= 0. 1mol/L¡Á0.5L=0.05mol£¬¸ù¾ÝCuSO4ÓëCuSO4¡¤5H2O¹ØϵʽÊÇ1:1µÄÎïÖʵÄÁ¿¹Øϵ£¬ËùÒÔÐèÒªCuSO4¡¤5H2OµÄÎïÖʵÄÁ¿ÊÇ0. 05mol£¬CuSO4¡¤5H2OµÄÖÊÁ¿ÊÇ0.05mol¡Á250g/mol=12.5g£¬ÓÉÓÚÍÐÅÌÌìƽµÄ¾«È·¶ÈÊÇ0.1g£¬ÔòÓ¦¸ÃÓÃÍÐÅÌÌìƽ³ÆÈ¡CuSO4¡¤5H2OµÄÖÊÁ¿ÊÇ12.5g£¬
¹Ê´ð°¸Îª£º12.5g£»
£¨3£©Í¼¢òËùʾÒÇÆ÷µÄÃû³ÆÊÇ500 mLÈÝÁ¿Æ¿£¬
A£®ÒÇÆ÷ÖÐÓÐÉÙÁ¿ÕôÁóË®£¬ÓÉÓÚ²»Ó°ÏìÈÜÖʵÄÎïÖʵÄÁ¿¼°ÈÜÒºµÄÌå»ý£¬Òò´Ë¶ÔÅäÖƵÄÈÜÒºµÄŨ¶ÈÎÞÓ°Ï죻
B£®¶¨ÈÝʱ¼ÓË®³¬¹ý¿Ì¶ÈÏߣ¬ÈÜÒºµÄÌå»ýÆ«´ó£¬ÊÇÈÜÒºµÄŨ¶ÈÆ«µÍ£»
C£®×îÖÕ¶¨ÈÝʱ¸©ÊÓ¹Û²ìÒºÃ棬ÈÜÒºµÄÌå»ýƫС£¬µ¼ÖÂÅäÖƵÄÈÜÒºµÄŨ¶ÈÆ«¸ß£»
¹Ê´ð°¸Îª£º500mlÈÝÁ¿Æ¿£»ÎÞÓ°Ï죻ƫµÍ£»Æ«¸ß¡£
![](http://thumb2018.1010pic.com/images/loading.gif)