ÌâÄ¿ÄÚÈÝ
£¨2006?¼ÃÄþ£©ÂÈ»¯ÄƺÍÏõËá¼ØÁ½ÖÖÎïÖʵÄÈܽâ¶ÈËæζȣ¨0¡«100¡æ£©µÄ±ä»¯¼ûÏÂ±í£º
Çë·ÖÎö±í¸ñÖеÄÊý¾Ý£¬»Ø´ðÏÂÁÐÎÊÌ⣺
¢ÙÈôÁ½ÎïÖʵÄÈܽâ¶ÈÏàµÈ£¬´ËʱËù¶ÔÓ¦µÄζȷ¶Î§ÔÚ
¢Ú20¡æʱ£¬ÂÈ»¯ÄƱ¥ºÍÈÜÒºµÄÖÊÁ¿·ÖÊý
¢ÛijͬѧÓû´Óº¬ÓÐÉÙÁ¿ÂÈ»¯ÄƵÄÏõËá¼ØÖзÖÀë³öÏõËá¼Ø£¬ËûÓ¦²ÉÈ¡µÄ·½·¨ÊÇ
0¡æ | 20¡æ | 40¡æ | 60¡æ | 80¡æ | 100¡æ | |
NaCl£¨g£© | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
KNO3£¨g£© | 13.3 | 31.6 | 63.9 | 110 | 169 | 246 |
¢ÙÈôÁ½ÎïÖʵÄÈܽâ¶ÈÏàµÈ£¬´ËʱËù¶ÔÓ¦µÄζȷ¶Î§ÔÚ
20¡«40¡æ
20¡«40¡æ
Ö®¼ä£»¢Ú20¡æʱ£¬ÂÈ»¯ÄƱ¥ºÍÈÜÒºµÄÖÊÁ¿·ÖÊý
£¾
£¾
ÏõËá¼Ø±¥ºÍÈÜÒºµÄÖÊÁ¿·ÖÊý£¨Ìî¡°£¾¡±¡¢¡°£¼¡±»ò¡°=¡±£©£»¢ÛijͬѧÓû´Óº¬ÓÐÉÙÁ¿ÂÈ»¯ÄƵÄÏõËá¼ØÖзÖÀë³öÏõËá¼Ø£¬ËûÓ¦²ÉÈ¡µÄ·½·¨ÊÇ
ÀäÈ´Èȱ¥ºÍÈÜÒº·¨
ÀäÈ´Èȱ¥ºÍÈÜÒº·¨
£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
£¨2006?¼ÃÄþ£©¶«·½ÖÐѧ¿ÎÍâ»î¶¯Ð¡×éÔڲⶨÓÉÂÈ»¯ÄƺÍÁòËáÄÆÐγɻìºÏÎïµÄ×é³Éʱ£¬½øÐÐÁËÒÔÏÂʵÑ飺ȡ20g»ìºÏÎïÈ«²¿ÈÜÓÚË®£¬½«µÃµ½µÄÈÜÒºµÈ·ÖΪ4·Ý£¬È»ºó·Ö±ð¼ÓÈëÒ»¶¨Á¿Î´ÖªÖÊÁ¿·ÖÊýµÄÂÈ»¯±µÈÜÒº£¬ÊµÑéÊý¾Ý¼ûÏÂ±í£º
ÈôÓйصĻ¯Ñ§·´Ó¦Îª£ºNa2SO4+BaCl2=BaSO4¡ý+2NaCl£¬Çë¼ÆË㣺
£¨1£©Î´ÖªÂÈ»¯±µÈÜÒºµÄÖÊÁ¿·ÖÊýΪ¶àÉÙ£®
£¨2£©Ô»ìºÏÎïÖÐÁòËáÄƵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£®£¨¾«È·µ½0.01£©
µÚÒ»·Ý | µÚ¶þ·Ý | µÚÈý·Ý | µÚËÄ·Ý | |
¼ÓÈëÂÈ»¯±µÈÜÒºÖÊÁ¿£¨g£© | 15 | 20 | 25 | 30 |
·´Ó¦µÃµ½³ÁµíµÄÖÊÁ¿£¨g£© | 1.40 | 1.86 | 2.33 | 2.33 |
£¨1£©Î´ÖªÂÈ»¯±µÈÜÒºµÄÖÊÁ¿·ÖÊýΪ¶àÉÙ£®
£¨2£©Ô»ìºÏÎïÖÐÁòËáÄƵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£®£¨¾«È·µ½0.01£©
£¨2006?¼ÃÄþ£©ÂÈ»¯ÄƺÍ̼ËáÄƾ§ÌåµÄÈܽâ¶È£¨0¡æ¡«30¡æ£©ÈçϱíËùʾ£º
¸ù¾ÝÉϱí·ÖÎöÏÂÁм¸ÖÖ˵·¨£º
¢Ù̼ËáÄƾ§ÌåµÄÈܽâ¶ÈÊÜζÈÓ°Ïì½Ï´ó£»
¢Ú½«º¬Ë®¸÷1OOgµÄÂÈ»¯ÄÆÓë̼ËáÄƵı¥ºÍÈÜÒº£¬´Ó30¡æ½µÖÁO¡æ£¬Îö³ö¾§ÌåµÄÖÊÁ¿ÏàµÈ£»
¢ÛÂÈ»¯ÄƺÍ̼ËáÄƾ§ÌåµÄÈܽâ¶ÈÏàµÈʱËù¶ÔÓ¦µÄζÈÔÚ2O¡æ¡«30¡æÖ®¼ä£»
¢ÜÓû´Óº¬ÓÐÉÙÁ¿NaClÔÓÖʵÄ̼ËáÄÆŨÈÜÒºÖзÖÀë³ö̼ËáÄƾ§Ì壬Ӧ²ÉÈ¡½µµÍÈÜҺζȵķ½Ê½£®
ÉÏÊö˵·¨ÖУ¬ÍêÈ«ÕýÈ·µÄÒ»×éÊÇ£¨ £©
0¡æ | 10¡æ | 20¡æ | 30¡æ | |
NaCl£¨g£© | 35.7 | 35.8 | 36.0 | 36.3 |
Na2CO3?10H2O£¨g£© | 7.0 | 12.5 | 21.5 | 38.8 |
¢Ù̼ËáÄƾ§ÌåµÄÈܽâ¶ÈÊÜζÈÓ°Ïì½Ï´ó£»
¢Ú½«º¬Ë®¸÷1OOgµÄÂÈ»¯ÄÆÓë̼ËáÄƵı¥ºÍÈÜÒº£¬´Ó30¡æ½µÖÁO¡æ£¬Îö³ö¾§ÌåµÄÖÊÁ¿ÏàµÈ£»
¢ÛÂÈ»¯ÄƺÍ̼ËáÄƾ§ÌåµÄÈܽâ¶ÈÏàµÈʱËù¶ÔÓ¦µÄζÈÔÚ2O¡æ¡«30¡æÖ®¼ä£»
¢ÜÓû´Óº¬ÓÐÉÙÁ¿NaClÔÓÖʵÄ̼ËáÄÆŨÈÜÒºÖзÖÀë³ö̼ËáÄƾ§Ì壬Ӧ²ÉÈ¡½µµÍÈÜҺζȵķ½Ê½£®
ÉÏÊö˵·¨ÖУ¬ÍêÈ«ÕýÈ·µÄÒ»×éÊÇ£¨ £©
£¨2006?¼ÃÄþ£©¶«·½ÖÐѧ¿ÎÍâ»î¶¯Ð¡×éÔڲⶨÓÉÂÈ»¯ÄƺÍÁòËáÄÆÐγɻìºÏÎïµÄ×é³Éʱ£¬½øÐÐÁËÒÔÏÂʵÑ飺ȡ20g»ìºÏÎïÈ«²¿ÈÜÓÚË®£¬½«µÃµ½µÄÈÜÒºµÈ·ÖΪ4·Ý£¬È»ºó·Ö±ð¼ÓÈëÒ»¶¨Á¿Î´ÖªÖÊÁ¿·ÖÊýµÄÂÈ»¯±µÈÜÒº£¬ÊµÑéÊý¾Ý¼ûÏÂ±í£º
ÈôÓйصĻ¯Ñ§·´Ó¦Îª£ºNa2SO4+BaCl2=BaSO4¡ý+2NaCl£¬Çë¼ÆË㣺
£¨1£©Î´ÖªÂÈ»¯±µÈÜÒºµÄÖÊÁ¿·ÖÊýΪ¶àÉÙ£®
£¨2£©Ô»ìºÏÎïÖÐÁòËáÄƵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£®£¨¾«È·µ½0.01£©
µÚÒ»·Ý | µÚ¶þ·Ý | µÚÈý·Ý | µÚËÄ·Ý | |
¼ÓÈëÂÈ»¯±µÈÜÒºÖÊÁ¿£¨g£© | 15 | 20 | 25 | 30 |
·´Ó¦µÃµ½³ÁµíµÄÖÊÁ¿£¨g£© | 1.40 | 1.86 | 2.33 | 2.33 |
£¨1£©Î´ÖªÂÈ»¯±µÈÜÒºµÄÖÊÁ¿·ÖÊýΪ¶àÉÙ£®
£¨2£©Ô»ìºÏÎïÖÐÁòËáÄƵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£®£¨¾«È·µ½0.01£©