Question

3£®Ä³ÐËȤС×éÔÚʵÑéÊÒ·¢ÏÖһƿ³¨¿Ú¾ÃÖõÄÇâÑõ»¯ÄƺÍһƿδ±êŨ¶ÈµÄÏ¡ÑÎËᣬΪ²â¶¨ÇâÑõ»¯ÄƵıäÖÊÇé¿öºÍÏ¡ÑÎËáµÄŨ¶È£¬ËûÃÇÈ¡9.3g±äÖʵÄÇâÑõ»¯ÄÆÑùÆ·ÓÚ׶ÐÎÆ¿ÖУ¬¼ÓÈë50gË®£¬³ä·ÖÈܽ⣬ÔÙÏò׶ÐÎÆ¿ÖеμÓδ֪Ũ¶ÈµÄÏ¡ÑÎËᣬʵÑé²âµÃ¼ÓÈëÏ¡ÑÎËáµÄÖÊÁ¿Óë׶ÐÎÆ¿ÖÐÎïÖʵÄÖÊÁ¿¹ØϵÈçͼËùʾ£®Çó£º
£¨1£©Õû¸ö·´Ó¦¹ý³ÌÖÐÉú³É¶þÑõ»¯Ì¼ÆøÌåµÄÖÊÁ¿Îª2.2g£»
£¨2£©9.3gÑùÆ·ÖÐ̼ËáÄƵÄÖÊÁ¿£»
£¨3£©Î´ÖªÅ¨¶ÈµÄÏ¡ÑÎËáµÄÈÜÖÊÖÊÁ¿·ÖÊý£®

Answer 1

·ÖÎö ¸ù¾ÝÇâÑõ»¯ÄÆ»áÎüÊÕ¿ÕÆøÖжþÑõ»¯Ì¼¶øÉú³É̼ËáÄÆ£¬Ì¼ËáÄÆÓëÑÎËá·´Ó¦Éú³É¶þÑõ»¯Ì¼ÆøÌå»áÔì³ÉÎïÖʵÄ×ÜÖÊÁ¿¼õÉÙ£¬¸ù¾ÝÖÊÁ¿Êغ㶨ÂɼÆËã³ö¶þÑõ»¯Ì¼µÄÖÊÁ¿£¬½ø¶ø¿ÉÒÔ¿ÉÒÔ¸ù¾Ý»¯Ñ§·½³Ìʽ¼ÆËã³ö̼ËáÄƵÄÖÊÁ¿¡¢²Î¼Ó·´Ó¦µÄÂÈ»¯ÇâµÄÖÊÁ¿£¬¼´¿ÉÇó³öÑÎËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®

½â´ð ½â£º£¨1£©ÓÉͼÖеÄÖÊÁ¿¹Øϵͼ¿ÉÖª£º²úÉú¶þÑõ»¯Ì¼µÄÖÊÁ¿£º£¨9.3g+50g+50g£©-107.1g=2.2g
£¨2£©Éè9.3gÑùÆ·ÖÐ̼ËáÄƵÄÖÊÁ¿Îªx£¬Óë̼ËáÄÆ·´Ó¦µÄÂÈ»¯ÇâµÄÖÊÁ¿Îªy£¬
Na₂CO₃+2HCl¨T2NaCl+H₂O+CO₂¡ü
106    73             44
x      y              2.2g
$\frac{106}{x}$=$\frac{73}{y}$=$\frac{44}{2.2g}$
x=5.3g£¬y=3.65g
£¨3£©Ï¡ÑÎËáµÄÈÜÖÊÖÊÁ¿·ÖÊý£º$\frac{3.65g}{30g}$¡Á100%=12.17%£»
´ð£º£¨1£©2.2¿Ë 
£¨2£©ÑùÆ·ÖÐ̼ËáÄƵÄÖÊÁ¿5.3g£»
£¨3£©Ï¡ÑÎËáµÄÈÜÖÊÖÊÁ¿·ÖÊý12.17%

µãÆÀ ÀûÓÃÖÊÁ¿Êغã¼ÆËã·´Ó¦ºóÈÜÒºÖÊÁ¿±È½ÏÖ±¹Û£º·´Ó¦¼È²»²úÉúÆøÌåÓÖÎÞ³Áµí£¬·´Ó¦ºóËùµÃÈÜÒºÖÊÁ¿¼´Îª·´Ó¦Ç°Á½ÈÜÒºµÄÖÊÁ¿ºÍ£®