Question

4£®ÓÐÒ»ÖÖ×ÔÉúÑõ·À¶¾Ãæ¾ß£¬ÆäʹÓõÄÉúÑõ¼ÁµÄÖ÷Òª³É·ÖÊdz¬Ñõ»¯¼Ø£¨»¯Ñ§Ê½ÎªKO₂£©£®È¡100gÉúÑõ¼ÁÑùÆ··ÅÈëÖÊÁ¿Îª20gÉÕ±­ÖУ¬ÔÙÏòÆäÖмÓÈë20gË®£¬ÒÑÖªKO₂ÓëË®·´Ó¦Éú³ÉKOHºÍÑõÆø£¨4KO₂+2H₂O=4KOH+3O₂¡ü£©£¬Ê¹ÉúÑõ¼ÁKO₂È«²¿·´Ó¦£¬Æä³ä·Ö·´Ó¦ºó£¨¼ÙÉèÔÓÖʲ»º¬¼ØÔªËØÇÒ²»ÓëË®·´Ó¦£©£¬³ÆµÃÉÕ±­¼°ÉÕ±­ÖÐÎïÖʵÄ×ÜÖÊÁ¿Îª116g£¬¼ÆË㣺
£¨1£©ÉúÑõ¼ÁÉú³ÉÑõÆøµÄÖÊÁ¿£»
£¨2£©ÉúÑõ¼ÁÖÐKO₂Õ¼µÄÖÊÁ¿·ÖÊý£®

Answer 1

·ÖÎö ¸ù¾Ý·´Ó¦µÄ»¯Ñ§·½³Ìʽ¼°ÆäÌṩµÄÊý¾Ý¿ÉÒÔ½øÐÐÏà¹Ø·½ÃæµÄ¼ÆËãºÍÅжϣ®

½â´ð ½â£º£¨1£©ÉúÑõ¼ÁÉú³ÉÑõÆøµÄÖÊÁ¿Îª£º100g+20g+20g-116g=24g£¬
´ð£ºÉúÑõ¼ÁÉú³ÉÑõÆøµÄÖÊÁ¿Îª24g£®
£¨2£©ÉèKO₂ÖÊÁ¿Îªx£¬
4KO₂+2H₂O=4KOH+3O₂¡ü£¬
284                          96
x                            24g
$\frac{284}{x}$=$\frac{96}{24g}$£¬
x=71g£¬
ÉúÑõ¼ÁÖÐKO₂Õ¼µÄÖÊÁ¿·ÖÊýΪ£º$\frac{71g}{100g}$¡Á100%=71%£¬
´ð£ºÉúÑõ¼ÁÖÐKO₂Õ¼µÄÖÊÁ¿·ÖÊýΪ71%£®

µãÆÀ ±¾ÌâÖ÷Òª¿¼²éѧÉúÔËÓüÙÉè·¨ºÍ»¯Ñ§·½³Ìʽ½øÐмÆËãºÍÍƶϵÄÄÜÁ¦£¬¼ÆËãʱҪעÒâ¹æ·¶ÐÔºÍ׼ȷÐÔ£®