ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿2019ÄêÑëÊÓ315Íí»áÖ÷Ì⣺¹²Öι²Ïí¡¢·ÅÐÄÏû·Ñ¡£ÑÛÏ£¬ÓеÄÑøÖ³³¡È´Ê¹ÓÃÁËÒ» Öֽаßòú»ÆµÄËÇÁÏÌí¼Ó¼Á£¬Èü¦µ°µ°»ÆÑÕÉ«±äÉ¡°»¯×±¡±³ÉÁËÉ¢Ñø¡°ÍÁ¼¦µ°¡±ÒÔ̧¸ß ¼Û¸ñ£¬Ä²È¡±©Àû¡£°ßòú»ÆµÄ»¯Ñ§Ê½ÎªC40H52O2£¬¾Ý´Ë»Ø´ðÏÂÁÐÎÊÌ⣺
(1)°ßòú»ÆµÄÏà¶Ô·Ö×ÓÖÊÁ¿Îª_____£»
(2)°ßòú»ÆÖÐ̼¡¢Çâ¡¢ÑõµÄÖÊÁ¿±ÈΪm(C)¡Ãm(H)¡Ãm(O)£½_____£»
(3)282g°ßòú»ÆÓë____g¶þÑõ»¯Ì¼º¬Ì¼Á¿ÏàµÈ¡£
¡¾´ð°¸¡¿564 120:13:8 880g
¡¾½âÎö¡¿
£¨1£©°ßòú»ÆµÄÏà¶Ô·Ö×ÓÖÊÁ¿Îª£¨12¡Á40£©+52+£¨16¡Á2£©=564
£¨2£©°ßòú»ÆÖÐ̼¡¢Çâ¡¢ÑõµÄÖÊÁ¿±ÈΪm(C)¡Ãm(H)¡Ãm(O)£½£¨12¡Á40£©£º52£º£¨16¡Á2£©=120:13:8
£¨3£©282g°ßòú»ÆÖÐ̼ԪËصÄÖÊÁ¿Îª282g¡Á =240g£¬º¬ÓÐ240g̼ԪËصĶþÑõ»¯Ì¼µÄÖÊÁ¿Îª£º240g¡Â =880g¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿