ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿½«5.1gþ¡¢ÂÁ»ìºÏÎïÈÜÓÚ500mL1mol/LÁòËáÈÜÒºÖУ¬³ä·Ö·´Ó¦¹²²úÉú±ê¿öÏÂVLÇâÆø£¬ÏòÊ£ÓàÈÜÒºÖÐÖðµÎµÎ¼ÓijÇâÑõ»¯ÄÆÈÜÒºÖÁ¹ýÁ¿£¬ÕâÒ»¹ý³ÌÖвúÉú³ÁµíµÄÎïÖʵÄÁ¿Óë¼ÓÈëÇâÑõ»¯ÄÆÈÜÒºÌå»ýµÄ¹ØϵÈçÏÂͼËùʾ£¬Çë¸ù¾ÝͼÖÐÊý¾Ý»Ø´ðÏÂÁÐÎÊÌâ¡£(ÇëÊéд±ØÒªµÄ¼ÆËã¹ý³Ì)
£¨1£©ÇâÑõ»¯ÄÆÈÜÒºµÄŨ¶ÈÊǶàÉÙĦÿÉý?_____________
£¨2£©Ô¹ÌÌå»ìºÏÎïÖÐÂÁµÄÖÊÁ¿ÊǶàÉÙ¿Ë?__________________
£¨3£©ÇâÆøµÄÌå»ýVÊǶàÉÙÉý?______________
£¨4£©Í¼ÖÐAµã¶ÔÓ¦ÇâÑõ»¯ÄÆÈÜÒºµÄÌå»ýÊǶàÉÙºÁÉý?________________
¡¾´ð°¸¡¿ 2mol/L 2.7g 5.6L 250mL
¡¾½âÎö¡¿£¨1£©¼ÓÈë500mLNaOHÈÜҺʱ£¬ÓɵçºÉÊغãn(Na£«)=n(H£«)=500mL1mol/L¡Á2=1mol=500mL¡Ác(NaOH)£¬c(NaOH)=2mol¡¤L£1£»£¨2£©500mLµ½550mLʱ£¬Al(OH)3£«OH=AlO2££«2H2O£¬n(Al(OH)3)=0.050L¡Á2mol¡¤L£1=0.1mol£¬¹ÊÂÁµÄÖÊÁ¿Îª0.1mol¡Á27g¡¤mol£1=2.7g£»£¨3£©MgµÄÖÊÁ¿Îª5.1g-2.7g=2.4g£¬²úÉúµÄH2µÄΪ0.15mol£«0.1mol=0.25mol£¬V£¨H2£©=0.25mol¡Á22.4L¡¤mol£1=5.6L£»£¨4£©0.1molAl3£«ºÍ0.1molMg2£«³ÁµíÏûºÄµÄOH£Îª0.1mol¡Á2+0.1mol¡Á3=0.5mol,V(NaOH)=0.5mol/2mol¡¤L£1=0.25L¼´OA¶ÎΪ500mL-250mL=250mL¡£
![](http://thumb2018.1010pic.com/images/loading.gif)