Question

17£®µç¶¯×ÔÐгµ¡¢Ð¡Æû³µµÈ½»Í¨¹¤¾ßÖж¼ÓÐΪÆäÌṩµçÄܵÄǦÐîµç³Ø£¨Ë׳ơ°µçÆ¿¡±£©£¬ËüµÄÓŵãÊÇ¿ÉÒÔ³äµçÑ­»·Ê¹Ó㮵çÆ¿µÄÕý¼«²ÄÁÏÊǶþÑõ»¯Ç¦£¨PbO₂£©£¬¸º¼«²ÄÁÏÊǽðÊôǦ£¨Pb£©£¬µçÆ¿ÄÚËù¼ÓÒºÌåÊÇÈÜÖÊÖÊÁ¿·ÖÊýΪ36%µÄÏ¡ÁòËᣬ·Åµç£¨ÎªÍâ½ç¹©µç£©Ê±·¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽΪ£ºPbO_{2 £¨¹Ì£©}+2H₂SO₄+Pb=2PbSO₄¡ý+2H₂O£®µ±·Åµçʱ£¬·´Ó¦Îï·´Ó¦µôÒ»¶¨Á¿ºó£¬¾Í»áµ¼ÖµçѹϽµ£¬²»ÄÜÕý³£Ê¹Óã¬Õâʱ¾Í±ØÐ뼰ʱ³äµç£®Ôò£º
£¨1£©Ç¦ËáÐîµç³Ø·Åµçʱ£¬»¯Ñ§ÄÜÄÜת»¯ÎªµçÄÜ£®
£¨2£©¼ÙÈçij¸öµçÆ¿ÖÐǦµÄÖÊÁ¿Îª1800¿Ë£¬ÄÚ×°36%µÄÏ¡ÁòËá1200¿Ë£¬µ±ÓÐ310.5¿ËµÄǦ²Î¼Ó·´Ó¦Ê±£¬µçÆ¿ÖÐÁòËáÈÜÒºÈÜÖʵÄÖÊÁ¿·ÖÊýΪ14.4%£®

Answer 1

·ÖÎö £¨1£©µç³Ø·ÅµçÊÇ»¯Ñ§ÄÜת»¯ÎªµçÄÜ£»
£¨2£©¸ù¾ÝǦµÄÖÊÁ¿ºÍ¶ÔÓ¦µÄ»¯Ñ§·½³ÌʽÇóËãPbO₂¡¢H₂SO₄¡¢PbSO₄µÄÖÊÁ¿£¬½ø¶øÇóËãËùµÃÈÜÒºÖÐÁòËáµÄÖÊÁ¿·ÖÊý£®

½â´ð ½â£º£¨1£©µç³Ø·ÅµçÊÇ»¯Ñ§ÄÜת»¯ÎªµçÄÜ£»
£¨2£©ÉèPbO₂¡¢H₂SO₄¡¢PbSO₄µÄÖÊÁ¿·Ö±ðΪx¡¢y¡¢z
PbO_{2 £¨¹Ì£©}+2H₂SO₄+Pb=2PbSO₄¡ý+2H₂O
239             196      207    606
x                  y      310.5g   z
$\frac{239}{x}$=$\frac{196}{y}$=$\frac{207}{310.5g}$=$\frac{606}{z}$
x=358.5g
y=294g
z=909g
ÔòÊ£ÓàµÄÁòËáµÄÖÊÁ¿Îª36%¡Á1200g-294g=138g
ËùµÃÈÜÒºµÄ×ÜÖÊÁ¿Îª358.5g+1200g+310.5g-909g=960g
µçÆ¿ÖÐÁòËáÈÜÒºÈÜÖʵÄÖÊÁ¿·ÖÊýΪ$\frac{138g}{960g}$¡Á100%¡Ö14.4%
¹Ê´ð°¸Îª£º£¨1£©»¯Ñ§ÄÜ£»£¨2£©14.4%£®

µãÆÀ ¸ù¾Ý»¯Ñ§·½³Ìʽ¼ÆËãʱ£¬µÚÒ»ÒªÕýÈ·Êéд»¯Ñ§·½³Ìʽ£¬µÚ¶þҪʹÓÃÕýÈ·µÄÊý¾Ý£¬µÚÈý¼ÆËã¹ý³ÌÒªÍêÕû£®