ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿½¨Ôì¡°Äϲý½¢¡±µÄÌØÖÖ¸Ö²ÄÐèÒªÓø»Ìú¿óʯ£¨º¬ÌúÁ¿¸ßÓÚ50%£©À´Ò±Á¶¡£ÑÐѧʵ¼ùС×éΪ²â³öijµØ³àÌú¿óʯ£¨Ö÷Òª³É·ÖÊÇFe2O3£©Öеĺ¬ÌúÁ¿£¬½øÐÐʵÑ飻ȡ20g³àÌú¿óʯÑùÆ·£¬Öð½¥¼ÓÈëÏ¡ÑÎËᣬ³ä·Ö·´Ó¦¡£ÊµÑéÏà¹ØÊý¾ÝÈçͼËùʾ£¨¼ÙÉèÔÓÖʲ»ÈÜÓÚË®£¬Ò²²»ÓëËá·´Ó¦£©¡£Çë¼ÆË㣺
£¨1£©20g³àÌú¿óʯÑùÆ·ÖÐÑõ»¯ÌúµÄÖÊÁ¿_______¡£
£¨2£©¼ÆËã¸ÃÑùÆ·ÖÐÌúÔªËصÄÖÊÁ¿·ÖÊý_______£¬ÓÉ´ËÅжϸóàÌú¿óʯÊÇ·ñÊôÓÚ¸»Ìú¿óʯ_______¡£
£¨3£©ÊµÑéÖÐËùÓÃÏ¡ÑÎËáÈÜÖʵÄÖÊÁ¿·ÖÊý_______¡£
¡¾´ð°¸¡¿16g 56% ÊôÓÚ 14.6%
¡¾½âÎö¡¿
£¨1£©¸ù¾Ýͼʾ¿ÉÖª£¬20g³àÌú¿óʯÑùÆ·ÖÐÑõ»¯ÌúµÄÖÊÁ¿Îª£º20g-4g=16g£»
£¨2£©¸ÃÑùÆ·ÖÐÌúÔªËصÄÖÊÁ¿£º£»¸ÃÑùÆ·ÖÐÌúÔªËصÄÖÊÁ¿·ÖÊý £¬ÓÉ´ËÅжϳö¸Ã³àÌú¿óʯÊôÓÚ¸»Ìú¿óʯ£»
£¨3£©Éè150gÏ¡ÑÎËáÖÐÂÈ»¯ÇâÖÊÁ¿Îªx¡£
x=21.9g£¬
ʵÑéÖÐËùÓÃÏ¡ÑÎËáÈÜÖʵÄÖÊÁ¿·ÖÊýÊÇ£º
´ð£ºÊµÑéÖÐËùÓÃÏ¡ÑÎËáÈÜÖʵÄÖÊÁ¿·ÖÊýÊÇ14.6%¡£
¡¾ÌâÄ¿¡¿Ê¯¼Òׯ28Öл¯Ñ§ÐËȤС×éµÄͬѧѧϰ¡°Ãð»ðÆ÷ÔÀí¡±ºó£¬Éè¼ÆÁËÈçͼËùʾʵÑ飬²¢¶Ô·´Ó¦ºóÆ¿ÖвÐÁô·ÏÒº½øÐÐ̽¾¿¡£
£¨Ìá³öÎÊÌ⣩·ÏÒºÖÐËùº¬ÈÜÖÊÊÇʲô£¿
£¨²ÂÏëÓë¼ÙÉ裩
²ÂÏë1£º·ÏÒºÖеÄÈÜÖÊÖ»ÓÐNaCl¡£
²ÂÏë2£º·ÏÒºÖеÄÈÜÖÊÊÇ_____¡£
²ÂÏë3£º·ÏÒºÖеÄÈÜÖÊÊÇNaClºÍHCl¡£
£¨ÊµÑéÓë½áÂÛ£©
£¨1£©Ð¡ÁÁͬѧΪÑéÖ¤²ÂÏë3£¬È¡ÉÙÁ¿·ÏҺװÈëÊÔ¹ÜÖУ¬È»ºóµÎÈë·Ó̪ÈÜÒº£¬·¢ÏÖ·Ó̪ÈÜÒº²»±äÉ«£¬ÓÚÊÇСÁÁÈÏΪ²ÂÏë3ÕýÈ·¡£ÄãÈÏΪËûµÄ½áÂÛ_____£¨Ìî¡°ÕýÈ·¡±»ò¡°´íÎó¡±£©£¬ÀíÓÉÊÇ_____¡£
£¨2£©ÇëÄãÁíÉè¼ÆʵÑé·½°¸ÑéÖ¤²ÂÏë3£º
ʵÑé²½Öè | ʵÑéÏÖÏó | ʵÑé½áÂÛ |
_____ | _____ | ²ÂÏë3ÕýÈ· |
£¨3£©ÑéÖ¤²ÂÏë2£¬¿ÉÑ¡ÓõÄÊÔ¼ÁÓÐ_____¡£
A ·Ó̪ÈÜÒº B ÇâÑõ»¯¼ØÈÜÒº C Ï¡ÁòËá D ÂÈ»¯±µÈÜÒº
£¨ÍØÕ¹ÓëÓ¦Óã©
Èô·ÏÒºÖеÄÈÜÖÊÊÇNaClºÍHCl£¬¸ù¾ÝHClµÄÐÔÖÊ£¬ÎÞÐèÁí¼ÓÊÔ¼Á£¬Ö»Òª¶Ô·ÏÒº½øÐÐ_____²Ù×÷¼´¿É´Ó·ÏÒºÖеõ½NaCl¹ÌÌå¡£