Question

¿ÎÍâ»î¶¯Ð¡×éµÄͬѧÔڲⶨÓÉNaClºÍNa₂CO₃ÐγɵĹÌÌå»ìºÏÎï×é³Éʱ£¬½øÐÐÁËÒÔÏÂʵÑ飺ȡ40 g¹ÌÌå»ìºÏÎïÅä³ÉÈÜÒº£¬Æ½¾ù·ÖΪËÄ·Ý£¬È»ºó·Ö±ð¼ÓÈëÒ»¶¨ÖÊÁ¿·ÖÊýµÄCaCl₂ÈÜÒº£¬ÊµÑéÊý¾Ý¼ûÏÂ±í£º

	ʵÑéÒ»	ʵÑé¶þ	ʵÑéÈý	ʵÑéËÄ
Ô­¹ÌÌå»ìºÏÎïÖÊÁ¿	£±£°g	£±£°g	£±£°g	£±£°g
¼ÓÈëCaCl2ÈÜÒºÖÊÁ¿	£±£°g	£²£°g	£³£°g	£´£°g
Éú³ÉµÄ³ÁµíµÄÖÊÁ¿	£²g	£í	£µg	£µg

Çë·ÖÎö±íÖÐÊý¾Ý»Ø´ð²¢¼ÆËã[£¨4£©ÒªÇóд¼ÆËã¹ý³Ì ]

£¨1£©Éú³ÉµÄ³ÁµíÊÇ£¨Ìîд»¯Ñ§Ê½£©             ¡£

£¨2£©10gÔ­¹ÌÌå»ìºÏÎïÅä³ÉµÄÈÜÒººÍ×ãÁ¿CaCl₂ÈÜÒº·´Ó¦£¬×î¶àÉú³É³ÁµíÖÊÁ¿Îª          g¡£

£¨3£©£í=        g¡£

£¨4£©Ô­¹ÌÌå»ìºÏÎïÖÐNa₂CO₃µÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿

Answer 1

½â£º(1)CaCO₃ ¡¡ £¨1·Ö£©¡¡¡¡¡¡¡¡ (2)5 £¨2·Ö£©¡¡¡¡ (3) 4¡¡ £¨2·Ö£©

£¨4£©Éè10gÔ­¹ÌÌå»ìºÏÎïÖÐNa₂CO₃ÖÊÁ¿Îªx

CaCl_2¡¡ + Na₂CO₃ = CaCO₃¡ý + 2NaCl

106¡¡¡¡ 100

x¡¡¡¡¡¡ 5g¡¡¡¡ ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ £¨1·Ö£©

¡¡¡¡¡¡¡¡¡¡¡¡¡¡ x = 5.3g¡¡¡¡¡¡ ¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­ £¨1·Ö£©

Ô­»ìºÏÎïÖÐ̼ËáÄƵÄÖÊÁ¿·ÖÊýÊÇ53%¡£¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

(ºÏÀí½â´ð²ÎÕÕ¸ø·Ö)¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡