ÌâÄ¿ÄÚÈÝ
°Ñ¸ÉÔï¡¢´¿¾»µÄÂÈËá¼ØºÍ¶þÑõ»¯Ã̵ĻìºÏÎï15.5g×°ÈË´óÊÔ¹ÜÖУ¬¼ÓÈÈÖÆÈ¡ÑõÆø£®´ý·´Ó¦ÍêÈ«ºó£¬½«ÊÔ¹ÜÀäÈ´¡¢³ÆÁ¿£¬µÃµ½10.7g¹ÌÌåÎïÖÊ£®¸Ã·´Ó¦»¯Ñ§·½³ÌʽΪ£º2KClO3
2KCl+3O2¡ü
£¨1£©¶þÑõ»¯ÃÌÔڸ÷´Ó¦ÖУ¬ËüµÄ
£¨2£©¸ù¾Ý
£¨3£©15.5gÂÈËá¼ØºÍ¶þÑõ»¯ÃÌ»ìºÏÎïÖꬶþÑõ»¯ÃÌÖÊÁ¿·ÖÊýÊÇ
| ||
¡÷ |
£¨1£©¶þÑõ»¯ÃÌÔڸ÷´Ó¦ÖУ¬ËüµÄ
ÖÊÁ¿
ÖÊÁ¿
ºÍ»¯Ñ§ÐÔÖÊ
»¯Ñ§ÐÔÖÊ
ûÓиı䣮£¨2£©¸ù¾Ý
ÖÊÁ¿Êغã
ÖÊÁ¿Êغã
¶¨ÂÉ£¬¿ÉÖƵÃÑõÆø4.8
4.8
g£®£¨3£©15.5gÂÈËá¼ØºÍ¶þÑõ»¯ÃÌ»ìºÏÎïÖꬶþÑõ»¯ÃÌÖÊÁ¿·ÖÊýÊÇ
21.0%
21.0%
£®·ÖÎö£º´ß»¯¼ÁÔÚ»¯Ñ§·´Ó¦Ç°ºóÖÊÁ¿²»±ä£¬»¯Ñ§ÐÔÖʲ»±ä£»
¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ£¬¿ÉÒÔ¼ÆËãÉú³ÉÑõÆøµÄÖÊÁ¿£»
¸ù¾Ý»¯Ñ§·½³Ìʽ¿ÉÒÔ¼ÆËãÂÈËá¼ØµÄÖÊÁ¿£¬½øÒ»²½¿ÉÒÔ¼ÆËã¶þÑõ»¯Ã̵ÄÖÊÁ¿£®
¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ£¬¿ÉÒÔ¼ÆËãÉú³ÉÑõÆøµÄÖÊÁ¿£»
¸ù¾Ý»¯Ñ§·½³Ìʽ¿ÉÒÔ¼ÆËãÂÈËá¼ØµÄÖÊÁ¿£¬½øÒ»²½¿ÉÒÔ¼ÆËã¶þÑõ»¯Ã̵ÄÖÊÁ¿£®
½â´ð£º½â£º£¨1£©¶þÑõ»¯ÃÌÔڸ÷´Ó¦ÖÐ×ö´ß»¯¼Á£¬·´Ó¦Ç°ºóËüµÄÖÊÁ¿ºÍ»¯Ñ§ÐÔÖʲ»±ä£®
¹ÊÌÖÊÁ¿£»»¯Ñ§ÐÔÖÊ£®
£¨2£©»¯Ñ§·´Ó¦×ñÑÖÊÁ¿Êغ㶨ÂÉ£¬¼´²Î¼Ó·´Ó¦µÄÎïÖʵÄÖÊÁ¿Ö®ºÍ£¬µÈÓÚ·´Ó¦ºóÉú³ÉµÄÎïÖʵÄÖÊÁ¿Ö®ºÍ£»
Éú³ÉÑõÆøµÄÖÊÁ¿Îª£º15.5g-10.7g=4.8g£®
¹ÊÌÖÊÁ¿Êغ㣻4.8£®
£¨3£©½â£ºÉèÂÈËá¼ØµÄÖÊÁ¿Îªx£¬
2KClO3
2KCl+3O2¡ü
245 96
x 4.8g
=
x=12.25g£¬
¶þÑõ»¯Ã̵ÄÖÊÁ¿Îª£º15.5g-12.25g=3.25g£¬
15.5gÂÈËá¼ØºÍ¶þÑõ»¯ÃÌ»ìºÏÎïÖꬶþÑõ»¯ÃÌÖÊÁ¿·ÖÊýÊÇ£º
¡Á100%=21.0%£®
´ð£º¶þÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊýÊÇ21.0%£®
¹ÊÌÖÊÁ¿£»»¯Ñ§ÐÔÖÊ£®
£¨2£©»¯Ñ§·´Ó¦×ñÑÖÊÁ¿Êغ㶨ÂÉ£¬¼´²Î¼Ó·´Ó¦µÄÎïÖʵÄÖÊÁ¿Ö®ºÍ£¬µÈÓÚ·´Ó¦ºóÉú³ÉµÄÎïÖʵÄÖÊÁ¿Ö®ºÍ£»
Éú³ÉÑõÆøµÄÖÊÁ¿Îª£º15.5g-10.7g=4.8g£®
¹ÊÌÖÊÁ¿Êغ㣻4.8£®
£¨3£©½â£ºÉèÂÈËá¼ØµÄÖÊÁ¿Îªx£¬
2KClO3
| ||
¡÷ |
245 96
x 4.8g
245 |
96 |
x |
4.8g |
x=12.25g£¬
¶þÑõ»¯Ã̵ÄÖÊÁ¿Îª£º15.5g-12.25g=3.25g£¬
15.5gÂÈËá¼ØºÍ¶þÑõ»¯ÃÌ»ìºÏÎïÖꬶþÑõ»¯ÃÌÖÊÁ¿·ÖÊýÊÇ£º
3.25g |
15.5g |
´ð£º¶þÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊýÊÇ21.0%£®
µãÆÀ£º¼ÆËã¶þÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊýʱ£¬ÒªÇó¼ÆËã15.5gÂÈËá¼ØºÍ¶þÑõ»¯ÃÌ»ìºÏÎïÖꬶþÑõ»¯ÃÌÖÊÁ¿·ÖÊý£¬²»ÊÇ10.7g¹ÌÌåÎïÖÊÖжþÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊý£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿