Question

20£®¼¦µ°¿ÇµÄÖ÷Òª³É·ÖÊÇ̼Ëá¸Æ£¨¼ÙÉ輦µ°¿ÇÖÐÆäËûÎïÖʲ»ÓëÑÎËá·´Ó¦£©£®ÎªÁ˲ⶨ¼¦µ°¿ÇÖиƵÄÖÊÁ¿·ÖÊý£¬Ð¡»ªÍ¬Ñ§½øÐÐÁËÈçÏÂʵÑ飺½«¼¦µ°¿ÇÏ´¾»¡¢¸ÉÔï²¢µ·Ëéºó£¬³ÆÈ¡10g·ÅÔÚÉÕ±­ÀȻºóÍùÉÕ±­ÖеμÓ×ãÁ¿µÄÏ¡ÑÎËᣬ¼ÓÈëÏ¡ÑÎËáµÄÁ¿ÓëÉú³ÉÆøÌåµÄÁ¿ÈçͼËùʾ£®ÊÔÇó
£¨1£©ÎªÁË´Ó·´Ó¦ºóµÄÈÜÒºÖеõ½½ÏΪ´¿¾»µÄÂÈ»¯¸Æ¾§Ì壬ֻҪÏȹýÂËÈ»ºóÕô·¢¾Í¿ÉÒÔÁË£®
£¨2£©¸Ã¼¦µ°¿ÇÖиÆÔªËصÄÖÊÁ¿·ÖÊý£®
£¨3£©100¿ËÕâÖÖÑÎËáÖеÄHClµÄÖÊÁ¿£®

Answer 1

·ÖÎö ÒÀ¾Ýͼʾ£¬µ±¼ÓÈë50gÏ¡ÑÎËáʱ£¬·Å³öÆøÌåµÄÖÊÁ¿×î¶à£¬´Ëºó±£³Ö²»±ä£¬ËµÃ÷50gÏ¡ÑÎËáÓ뼦µ°¿ÇÖеÄ̼Ëá¸ÆÇ¡ºÃ·´Ó¦£¬Éú³É2.2gµÄ¶þÑõ»¯Ì¼£¬¾Ý´Ë½áºÏ·½³Ìʽ¿ÉÒÔ¼ÆËã³ö̼Ëá¸ÆµÄÖÊÁ¿£¬²Î¼Ó·´Ó¦µÄÑÎËáÈÜÖʵÄÖÊÁ¿£¬´Ó¶ø¼ÆËã³ö̼Ëá¸ÆÖиÆÔªËصÄÖÊÁ¿ºÍÏ¡ÑÎËáµÄÈÜÖÊÖÊÁ¿·ÖÊý£®

½â´ð ½â£º
£¨1£©¸ù¾Ý·ÖÀë»ìºÏ»ìºÏÎïµÄ·½·¨¿ÉÖª£º´Ó·´Ó¦ºóµÄÈÜÒºÖеõ½½ÏΪ´¿¾»µÄÂÈ»¯¸Æ¾§Ì壬ֻҪÏȹýÂËÈ»ºóÕô·¢¾Í¿ÉÒÔÁË£»
É輦µ°¿ÇÖÐ̼Ëá¸ÆµÄÖÊÁ¿ÊÇx£¬²Î¼Ó·´Ó¦µÄÑÎËáµÄÖÊÁ¿ÊÇy
CaCO₃+2HCl¨TCaCl₂+CO₂¡ü+H₂O
100   73          44
x     y          2.2g
$\frac{100}{x}=\frac{73}{y}=\frac{44}{2.2g}$
x=5g
y=3.65g
£¨2£©5g̼Ëá¸ÆÖиÆÔªËصÄÖÊÁ¿=5g¡Á$\frac{40}{40+12+16¡Á3}¡Á$100%=2g
¸Ã¼¦µ°¿ÇÖиÆÔªËصÄÖÊÁ¿·ÖÊý=$\frac{2g}{10g}¡Á$100%=20%
£¨3£©ËùÓÃÏ¡ÑÎËáµÄÈÜÖÊÖÊÁ¿·ÖÊýΪ$\frac{3.65g}{50g}¡Á$100%¨T7.3%£¬100¿ËÕâÖÖÑÎËáÖеÄHClµÄÖÊÁ¿=100g¡Á7.3%=7.3g
´ð£º
£¨1£©Õô·¢
£¨2£©¸Ã¼¦µ°¿ÇÖÐ̼Ëá¸ÆµÄÖÊÁ¿·ÖÊýÊÇ50%£»
£¨3£©100¿ËÕâÖÖÑÎËáÖеÄHClµÄÖÊÁ¿7.3g£®

µãÆÀ ±¾Ì⿼²éÁËѧÉú¸ù¾ÝͼÏó·ÖÎö½â¾öÎÊÌâµÄÄÜÁ¦£¬ÔÚ½â´ð´ËÀàÌâʱ£¬Òª×¢Òâ¹Û²ìͼÏóµÄÆðµã¡¢Öյ㡢תÕ۵㡢±ä»¯Ç÷ÊÆ£¬¼´¡®ÈýµãÒ»Ç÷ÊÆ¡¯£¬Í¨³£Í¼ÏóµÄתÕÛµãÊÇÎïÖÊÇ¡ºÃ·´Ó¦µÄµã£¬¾Ý´Ë½áºÏ·½³Ìʽ·ÖÎö½â´ð£®