ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿½à²ÞÁéÊdz£ÓõÄÌÕ´ÉÇåÏ´Òº,СÅíͬѧ¶ÔijƷÅƽà²ÞÁéµÄÓÐЧ³É·Ö¼°Æ京Á¿½øÐÐÑо¿¡£
£¨1£©²éÔÄ×ÊÁϵÃÖª:½à²ÞÁéµÄÓÐЧ³É·ÖÊÇHCl,HClµÄº¬Á¿¿Éͨ¹ýÒÑÖªÈÜÖÊÖÊÁ¿·ÖÊýµÄNaHCO3ÈÜÒºÀ´²â¶¨,ÆäËû³É·Ö¾ù²»²ÎÓë·´Ó¦¡£ÇëÍê³ÉHClÓëNaHCO3·´Ó¦µÄ»¯Ñ§·½³Ìʽ:HCl+NaHCO3=NaCl+___+CO2¡ü¡£
£¨2£©Ïòһ׶ÐÎÆ¿ÖмÓÈë100 g¸ÃÆ·ÅƵĽà²ÞÁé,ÔÙÖð´Î¼ÓÈëÏàͬÖÊÁ¿·ÖÊýµÄNaHCO3ÈÜÒº,²â³öÿ´Î׶ÐÎÆ¿Öз´Ó¦ºóÈÜÒºµÄ×ÜÖÊÁ¿,Êý¾Ý¼Ç¼ÈçÏÂ:
µÚÒ»´Î | µÚ¶þ´Î | µÚÈý´Î | µÚËÄ´Î | µÚÎå´Î | |
¼ÓÈëNaHCO3ÈÜÒºµÄÖÊÁ¿/g | 40 | 40 | 40 | 40 | 40 |
·´Ó¦ºóÈÜÒºµÄ×ÜÖÊÁ¿/g | 138.9 | 177.8 | 216.7 | 255.6 | 295.6 |
¢Ù µÚ________´ÎÇ¡ºÃÍêÈ«·´Ó¦¡£
¢Ú ¸ÃÆ·Åƽà²ÞÁéÖÐHClµÄÖÊÁ¿·ÖÊýÊǶàÉÙ?________
¡¾´ð°¸¡¿H2O ËÄ 3.65%
¡¾½âÎö¡¿
£¨1£©HClÓëNaHCO3·´Ó¦Éú³ÉÂÈ»¯ÄÆ¡¢Ë®ºÍ¶þÑõ»¯Ì¼£¬¶ÔÓ¦µÄ»¯Ñ§·½³Ìʽ£ºHCl+NaHCO3=NaCl+H2O+CO2¡ü¡£
£¨2£©¢ÙµÚÒ»µ½µÚËĴμÓÈë40g̼ËáÇâÄÆÈÜÒº¶¼ÊÇÉú³É1.1gµÄ¶þÑõ»¯Ì¼£¬µÚÎå´Î¼ÓÈë40g̼ËáÇâÄÆûÓвúÉú¶þÑõ»¯Ì¼£¬¹ÊµÚËÄ´ÎÇ¡ºÃÍêÈ«·´Ó¦¡£
¢Ú½â:Éè100 g¸ÃÆ·Åƽà²ÞÁéÖÐHClµÄÖÊÁ¿ÊÇx¡£
x=3.65 g
½à²ÞÁéÖÐHClµÄÖÊÁ¿·ÖÊýÊÇ¡£
´ð:¸ÃÆ·Åƽà²ÞÁéÖÐHClµÄÖÊÁ¿·ÖÊýÊÇ3.65%¡£
