Question

2£®Ä³Ð£ÐËȤС×éÔÚʵÑéÊÒ×öÖÆÈ¡ÑõÆøµÄʵÑ飬ËûÃÇÈ¡ÂÈËá¼ØºÍ¶þÑõ»¯Ã̵ĻìºÏÎï6.0g·ÅÈë´óÊÔ¹ÜÖнøÐмÓÈÈ£¬²¢ÔÚ²»Í¬Ê±¿Ì²â¶¨ÊÔ¹ÜÄÚÊ£Óà¹ÌÌåµÄÖÊÁ¿Èçϱí

·´Ó¦Ê±¼ä/min	1.0	1.5	2.0	2.5	3.0	3.5
Ê£Óà¹ÌÌåÖÊÁ¿/g	5.1	4.5	4.2	4.08	4.08	4.08

·ÖÎö±íÖÐÊý¾Ý£¬Íê³ÉÏÂÁÐÎÊÌ⣺
£¨1£©Éú³ÉÑõÆøµÄÖÊÁ¿Îª1.92g£®
£¨2£©Ô­»ìºÏÎïÖжþÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿£¨Ð´³ö¼ÆËã¹ý³Ì£¬¼ÆËã½á¹û¾«È·µ½0.1%£©

Answer 1

·ÖÎö £¨1£©¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉÇó³öÉú³ÉµÄÑõÆøµÄÖÊÁ¿£»
£¨2£©ÓÉÑõÆøµÄÖÊÁ¿¿ÉÇó³öÂÈËá¼ØµÄÖÊÁ¿£¬¼´¿ÉÇó³ö¶þÑõ»¯Ã̵ÄÖÊÖÊÁ¿¼°ÖÊÁ¿·ÖÊý£®

½â´ð ½â£º£¨1£©¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉÉú¿ÉÖªÉú³ÉÑõÆøµÄÖÊÁ¿Îª£º6.0g-4.08g=1.92g£»
£¨2£©ÉèÔ­»ìºÏÎïÖÐÂÈËá¼ØµÄÖÊÁ¿Îªx
2KClO₃$\frac{\underline{MnO_2}}{¡÷}$2KCl+3O₂¡ü
245                          96
x                           1.92g
$\frac{245}{x}$=$\frac{96}{1.92g}$
½âµÃ£ºx=4.9g
Ô­»ìºÏÎïÖжþÑõ»¯Ã̵ÄÖÊÁ¿=6.0g-4.9g=1.1g
Ô­»ìºÏÎïÖжþÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊý=$\frac{1.1g}{6.6g}$¡Á100%¡Ö18.3%
´ð£º£¨1£©1.92£»£¨2£©Ô­»ìºÏÎïÖжþÑõ»¯Ã̵ÄÖÊÁ¿·ÖÊý18.3%£®

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éѧÉú¶ÔÎïÖÊÖÊÁ¿Êغ㶨ÂɵÄÈÏʶÒÔ¼°ÀûÓû¯Ñ§·½³ÌʽºÍÖÊÁ¿·ÖÊý¹«Ê½½øÐмÆËãµÄÄÜÁ¦£®