ÌâÄ¿ÄÚÈÝ
º£Ë®Ô̲Ø×ŷḻµÄ»¯Ñ§×ÊÔ´¡£Ä³ÐËȤС×é¶Ôº£Ë®É¹µÃµÄ´ÖÑνøÐÐÌá´¿²¢ÅäÖÆNaClÈÜÒº£¬Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©º£Ë®Öк¬ÓеÄÑÕÉ«¡¢Òìζ¿ÉÒÔÓà ¡¡³ýÈ¥¡£
£¨2£©ÏÂͼΪ´ÖÑεÄÌá´¿¹ý³Ì£¬ÆäÖвÙ×÷¢Ù¡¢¢Ú¡¢¢ÛÒÀ´ÎΪ ¡¢ ¡¢ £»²£Á§°ôµÄ×÷ÓÃÒÀ´ÎÊÇ ¡¢ ¡¢ ¡£
£¨3£©ÈôNaClµÄ²úÂÊÆ«µÍ£¨£©£¬Ôò¿ÉÄܵÄÔÒòÊÇ£¨Ìî×Öĸ£© ¡¡¡¡ ¡£
A£®¹ýÂËʱÂËÖ½ÓÐÆÆËð¡¡¡¡
B£®Õô·¢Ê±ÓйÌÌ彦³ö
C£®Èܽ⺬ÄàɳµÄ´ÖʳÑÎʱ£¬¼ÓÈëµÄË®Á¿²»×ã
£¨4£©ÓÃÉÏÊöʵÑéËùµÃNaCl¾§ÌåÅäÖÆ50gÈÜÖÊÖÊÁ¿·ÖÊýΪ5%NaClÈÜÒº£¬ÅäÖÆʱÐèÒªµÄ²£Á§ÒÇÆ÷ÓÐÉÕ±¡¢²£Á§°ô¡¢µÎ¹Ü¡¢ ¡£
£¨1£©»îÐÔÌ¿£» £¨2£©Èܽ⡢¹ýÂË¡¢Õô·¢£» ½Á°è£¬¼ÓËÙÈܽ⡢ ÒýÁ÷¡¢ ·ÀÖ¹ÒºµÎ·É½¦¡£
£¨3£©BC£»1·Ö £¨4£©Á¿Í²
½âÎöÊÔÌâ·ÖÎö£º£¨1£©º£Ë®Öк¬ÓеÄÑÕÉ«¡¢Òìζ¿ÉÒÔÓûîÐÔÌ¿³ýÈ¥¡£
£¨2£©´ÖÑεÄÌá´¿¹ý³ÌÖУ¬²Ù×÷¢Ù¡¢¢Ú¡¢¢ÛÒÀ´ÎΪÈܽ⡢¹ýÂË¡¢Õô·¢£»²£Á§°ôµÄ×÷ÓÃÒÀ´ÎÊǽÁ°è£¬¼ÓËÙÈܽ⡢ ÒýÁ÷¡¢ ·ÀÖ¹ÒºµÎ·É½¦¡£
£¨3£©ÈôNaClµÄ²úÂÊÆ«µÍ£¨£©£¬Ôò¿ÉÄܵÄÔÒòÊÇ£º
B£®Õô·¢Ê±ÓйÌÌ彦³ö£¬Ê³ÑμõÉÙÁË£»
C£®Èܽ⺬ÄàɳµÄ´ÖʳÑÎʱ£¬¼ÓÈëµÄË®Á¿²»×㣬ʳÑÎûÓÐÈ«²¿Èܽ⡣
£¨4£©ÓÃÉÏÊöʵÑéËùµÃNaCl¾§ÌåÅäÖÆ50gÈÜÖÊÖÊÁ¿·ÖÊýΪ5%NaClÈÜÒº£¬ÅäÖÆʱÐèÒªµÄ²£Á§ÒÇÆ÷ÓÐÉÕ±¡¢²£Á§°ô¡¢µÎ¹Ü¡¢Á¿Í²¡£
¿¼µã£º»îÐÔÌ¿µÄÐÔÖÊÓëÓÃ;£»´ÖÑεÄÌá´¿£»ÅäÖÆÒ»¶¨ÈÜÖÊÖÊÁ¿·ÖÊýµÄÈÜÒº¡£
µãÆÀ£º´ÖÑεÄÌá´¿£¬Òª¾¹ýÈܽ⡢¹ýÂË¡¢Õô·¢µÈ²½Ö裻ÅäÖÆÒ»¶¨ÈÜÖÊÖÊÁ¿·ÖÊýµÄÈÜÒº£¬Òª¾¹ý¼ÆËã¡¢³ÆÁ¿£¨Á¿È¡£©¡¢Èܽ⡢װƿ¡¢Ìù±êÇ©µÈ²½Öè¡£
![](http://thumb2018.1010pic.com/images/loading.gif)
![¾«Ó¢¼Ò½ÌÍø](http://thumb.1010pic.com/pic3/upload/images/201206/47/3debb665.png)
£¨1£©ÔÚʵÑéÊÒ½øÐвÙ×÷aʱÐèÒªµÄÒ»ÖÖ²£Á§ÒÇÆ÷ÊÇ
£¨2£©ÐËȤС×éͬѧȡһ¶¨Á¿µÄº£Ë®ÑùÆ·£¬·Ö±ð¼ÓÈëNaOHÈÜÒº£¬½øÐÐʵÑ飬²âµÃµÄʵÑéÊý¾ÝÈçÏÂ±í£º
ʵÑé1 | ʵÑé2 | ʵÑé3 | |
º£Ë®ÑùÆ·ÖÊÁ¿/g | 100 | 100 | 100 |
¼ÓÈëNaOHÈÜÒºÖÊÁ¿/g | 10 | 15 | 20 |
Éú³É³ÁµíÎïµÄÖÊÁ¿/g | 0.22 | 0.29 | 0.29 |
¢Ùº£Ë®ÑùÆ·ÖÐÂÈ»¯Ã¾µÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿£¨¼ÆËã½á¹û¾«È·µ½0.001£©
¢ÚÈô´Ó1tÕâÖÖº£Ë®ÖпÉÌáÈ¡¶àÉÙǧ¿Ë½ðÊôþ£¿