Question

Ëæ»úÈ¡Ò»¶¨Á¿µÄþ·ÛºÍÍ­·ÛµÄ»ìºÏÎïÓÚÉÕ±­ÖУ¬ÔÙÏòÆäÖзִμÓÈëµÈÖÊÁ¿µÄͬһϡÁòËᡣʵÑé¹ý³ÌÖÐÓйØÎïÖʵÄÓÃÁ¿¼°ÖÊÁ¿²â¶¨¼Ç¼ÈçÏÂ±í£º

	µÚÒ»´Î	µÚ¶þ´Î	µÚÈý´Î	µÚËÄ´Î
¼ÓÈëÏ¡ÁòËáµÄÖÊÁ¿	35g	35g	35g	35g
Ê£Óà¹ÌÌåµÄÖÊÁ¿	8.6g	7.4g	6.2g	5.6g

Çë»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©Ëæ»úËùȡþ·ÛºÍÍ­·Û»ìºÏÎïµÄÖÊÁ¿Îª        g£»
£¨2£©ÊµÑé²Ù×÷½áÊøºóµÄÈÜÒºÖÐÈÜÖʵĻ¯Ñ§Ê½Îª            £»
£¨3£©ËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ          £»
£¨4£©·´Ó¦ºóËùµÃÈÜÒºµÄ×ÜÖÊÁ¿ÊǶàÉÙ£¨ÒªÓнâ´ð¹ý³Ì£¬½á¹û¾«È·µ½0.01g£©£¿

Answer 1

£¨1£©9.8   £¨2£©MgSO₄¡¢H₂SO₄    (3)14%       (4)143.85g

½âÎöÊÔÌâ·ÖÎö£º£¨1£©ÓÉÌâÖз´Ó¦µÄÊý¾Ý¿ÉÖª£¬Ã¿´Î¼ÓÈë35gÏ¡ÁòËᣬ½«·´Ó¦µô¹ÌÌå1.2g£¬¹ÊËæ»úËùȡþ·ÛºÍÍ­·Û»ìºÏÎïµÄÖÊÁ¿Îª8.6+1.2=9.8g£»
£¨2£©Ã¾µÄ½ðÊô»î¶¯ÐÔÇ¿ÓÚÇ⣬ÄÜÓëÁòËá·´Ó¦£¬¶øÍ­²»ÄÜÓëÁòËá·´Ó¦£¬ÊµÑé²Ù×÷½áÊøºóµÄÈÜÒºÖÐÈÜÖʵĻ¯Ñ§Ê½ÎªMgSO₄¡¢H₂SO₄£»
£¨3£©É裺35gÏ¡ÁòËáÖк¬ÓÐÁòËáµÄÖÊÁ¿ÎªX£¬·´Ó¦Éú³ÉÇâÆøµÄÖÊÁ¿ÎªY¡£
H₂SO₄+Mg= MgSO₄+ H₂
98    24         2
X    1.2g       Y
98:24=X£º1.2g
X=4.9g
24:2=1.2g£ºY
Y=0.2g
ËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ£¨4.9/35£©¡Á100%=14%¡£
£¨4£©Éèþȫ²¿·´Ó¦Íêºó£¬²úÉúÇâÆøµÄÖÊÁ¿ÎªY¡£
H₂SO₄+Mg= MgSO₄+ H₂¡ü
24               2
4.2g       Y
24:2=4.2g£ºY
Y=0.35g
·´Ó¦ºóËùµÃÈÜÒºµÄ×ÜÖÊÁ¿ÊÇ£º35¡Á4+1.2¡Á£³£«0.6-0.35=143.85g
´ð£º£¨1£©Ëæ»úËùȡþ·ÛºÍÍ­·Û»ìºÏÎïµÄÖÊÁ¿Îª9.8g£»
£¨2£©ÊµÑé²Ù×÷½áÊøºóµÄÈÜÒºÖÐÈÜÖʵĻ¯Ñ§Ê½ÎªMgSO₄¡¢H₂SO₄ £»
£¨3£©ËùÓÃÏ¡ÁòËáÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýΪ14%£»
£¨4£©·´Ó¦ºóËùµÃÈÜÒºµÄ×ÜÖÊÁ¿ÊÇ143.85g
¿¼µã£º½ðÊô»î¶¯ÐÔ£»»¯Ñ§Ê½£»ÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊý£»¸ù¾Ý»¯Ñ§·½³Ìʽ¼ÆËã¡£
µãÆÀ£º¸ù¾Ý»¯Ñ§·½³Ìʽ¼ÆË㣬עÒâÉ衢д¡¢ÕÒ¡¢ÁС¢½â¡¢´ðµÄ½âÌâ²½Öè¡£