ÌâÄ¿ÄÚÈÝ
(11·Ö)ijºÏ½ð¿ÉÄÜÓÉÍÓëþ¡¢Ð¿ÖеÄÒ»ÖÖ×é³É£¬ÏÖÓû²â¶¨Æä×é³É£¬½øÐÐÈçÏÂʵÑ飺ȡ¸ÃºÏ½ðÑùÆ·10.0 g·ÅÈëÉÕ±ÖУ¬È»ºó½«56.0 gÈÜÖÊÖÊÁ¿·ÖÊýΪ14.0%µÄÏ¡ÁòËáƽ¾ù·ÖËÄ´ÎÒÀ´Î¼ÓÈë¸ÃÉÕ±ÖУ¬Ã¿´Î¾ù³ä·Ö·´Ó¦¡£ÊµÑéÊý¾Ý¼Ç¼ÈçÏÂ±í£º
ÊÔÇó£º
(1)¸ÃºÏ½ðÖÐ͵ÄÖÊÁ¿·ÖÊýÊÇ__________¡£
(2)¸ÃºÏ½ð³ýÁËÍÍ⣬ÁíÒ»ÖÖ½ðÊôµÄÊÇʲôÄØ£¿(д³ö¹ý³Ì)
(3)µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿(д³ö¼ÆËã¹ý³Ì£¬½á¹û¾«È·µ½0.1%)
ÊÔÇó£º
(1)¸ÃºÏ½ðÖÐ͵ÄÖÊÁ¿·ÖÊýÊÇ__________¡£
(2)¸ÃºÏ½ð³ýÁËÍÍ⣬ÁíÒ»ÖÖ½ðÊôµÄÊÇʲôÄØ£¿(д³ö¹ý³Ì)
(3)µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿(д³ö¼ÆËã¹ý³Ì£¬½á¹û¾«È·µ½0.1%)
(160.0%
(2)ÉèM½ðÊôµ¥ÖʵÄÏà¶ÔÔ×ÓÖÊÁ¿Îªx¡£
M£«H2SO4===MSO4£«H2¡ü
x 98
10£®0 g£6.1 g 42.0 g¡Á14.0%
£½
x£½65
¸Ã½ðÊôÊÇп¡£
(Ò²¿ÉÑ¡È¡µÚÒ»´Î»òµÚ¶þ´ÎʵÑéµÄÊý¾Ý¼ÆËã)
(3) ½â£ºÉèµÚÈý´ÎËùµÃÈÜÒºÖÐZnSO4µÄÖÊÁ¿Îªy£¬Éú³ÉH2µÄÖÊÁ¿Îªz¡£
Zn£«H2SO4===ZnSO4£«H2¡ü
98 161 2
42£®0 g¡Á14.0% y z
£½
y£½9.66 g
£½
z£½0.12 g
ZnSO4ÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊýΪ
¡Á100%¡Ö21.1%
(Ò²¿ÉÑ¡È¡ZnµÄʵÑéÊý¾Ý¼ÆËã)
´ð£ºÂÔ¡£
(2)ÉèM½ðÊôµ¥ÖʵÄÏà¶ÔÔ×ÓÖÊÁ¿Îªx¡£
M£«H2SO4===MSO4£«H2¡ü
x 98
10£®0 g£6.1 g 42.0 g¡Á14.0%
£½
x£½65
¸Ã½ðÊôÊÇп¡£
(Ò²¿ÉÑ¡È¡µÚÒ»´Î»òµÚ¶þ´ÎʵÑéµÄÊý¾Ý¼ÆËã)
(3) ½â£ºÉèµÚÈý´ÎËùµÃÈÜÒºÖÐZnSO4µÄÖÊÁ¿Îªy£¬Éú³ÉH2µÄÖÊÁ¿Îªz¡£
Zn£«H2SO4===ZnSO4£«H2¡ü
98 161 2
42£®0 g¡Á14.0% y z
£½
y£½9.66 g
£½
z£½0.12 g
ZnSO4ÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊýΪ
¡Á100%¡Ö21.1%
(Ò²¿ÉÑ¡È¡ZnµÄʵÑéÊý¾Ý¼ÆËã)
´ð£ºÂÔ¡£
·ÖÎö£º£¨1£©¸ù¾Ý½ðÊô»î¶¯ÐÔ£¬Í²»ÓëÁòËá·´Ó¦£¬µÚ4´Î¼ÓÈëÏ¡ÁòËá¹ÌÌåÖÊÁ¿¼õÉÙÁ¿Ð¡ÓÚÇ°Èý´Î£¬ËµÃ÷ËùÊ£Óà¹ÌÌåÈ«²¿ÎªÍ£¬ÍÓëÑùÆ·ÖÊÁ¿±È¿É¼ÆËã¸ÃºÏ½ðÖÐ͵ÄÖÊÁ¿·ÖÊý£»
£¨2£©ÀûÓÃÇ°Èý´Î·´Ó¦ËùÏûºÄÁòËáµÄÖÊÁ¿£¬ÓÉ·´Ó¦ÖнðÊôÖÊÁ¿ÓëÁòËáÖÊÁ¿¹Øϵ£¬¼ÆËã³ö½ðÊôµÄÏà¶ÔÔ×ÓÖÊÁ¿£¬¸ù¾Ý½ðÊôµÄÏà¶ÔÔ×ÓÖÊÁ¿ÅжϽðÊô£»
£¨3£©¸ù¾Ý·´Ó¦µÄ»¯Ñ§·½³Ìʽ£¬ÓÉÁòËáÖÊÁ¿¼ÆËãÉú³ÉÁòËáÑεÄÖÊÁ¿¡¢·Å³öÇâÆøµÄÖÊÁ¿£¬ÁòËáÑεÄÖÊÁ¿Óë·´Ó¦ºóÈÜÒºÖÊÁ¿±È¿É¼ÆËãËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£»ÆäÖз´Ó¦ºóÈÜÒºÖÊÁ¿¿ÉÀûÓÃÖÊÁ¿Êغ㶨ÂɼÆËãÇóµÃ£®
½â´ð£º½â£º£¨1£©Í²»ÓëÁòËá·´Ó¦£¬¸ù¾ÝʵÑéÊý¾Ý¿ÉÖª£¬ÑùÆ·ÖÐ͵ÄÖÊÁ¿Îª6.0g£¬¸ÃºÏ½ðÖÐ͵ÄÖÊÁ¿·ÖÊý=
¡Á100%=60.0%
¹Ê´ð°¸Îª£º60.0%£»
£¨2£©£¨È¡µ½µÚÈý´ÎµÄʵÑéÊý¾ÝΪ׼£©ÉèM½ðÊôµ¥ÖʵÄÏà¶ÔÔ×ÓÖÊÁ¿Îªx£®
²Î¼Ó·´Ó¦µÄ½ðÊôµÄÖÊÁ¿=10.0g-6.1g=3.9g£®¶ø²Î¼Ó·´Ó¦µÄÁòËáÈÜÒºµÄÖÊÁ¿Îª14g¡Á3=42g£®
M+H2SO4¨TMSO4+H2¡ü
x 98
3.9g 42.0g¡Á14.0%
=
x="65" Òò´Ë¸Ã½ðÊôÊÇп£®
£¨Ò²¿ÉÑ¡È¡µÚÒ»´Î»òµÚ¶þ´ÎʵÑéµÄÊý¾Ý¼ÆË㣩
£¨3£©ÉèµÚÈý´ÎËùµÃÈÜÒºÖÐZnSO4µÄÖÊÁ¿Îªy£¬Éú³ÉH2µÄÖÊÁ¿Îªz£®
Zn+H2SO4 ¨TZnSO4+H2¡ü
98 161 2
42.0g¡Á14.0% y z
=
y=9.66g
=
z=0.12g
ZnSO4ÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊý=¡Á100%¡Ö21.1%
£¨Ò²¿ÉÑ¡È¡ZnµÄʵÑéÊý¾Ý¼ÆË㣩
´ð£º£¨2£©¸ÃºÏ½ð³ýÁËÍÍ⣬ÁíÒ»ÖÖ½ðÊôµÄÊÇп£»£¨3£©µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýԼΪ21.1%£®
µãÆÀ£º¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ£¬µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºµÄÖÊÁ¿=²Î¼Ó·´Ó¦½ðÊôµÄÖÊÁ¿+Ç°Èý´ÎËù¼ÓÏ¡ÁòËáµÄÖÊÁ¿-·Å³öÇâÆøµÄÖÊÁ¿
£¨2£©ÀûÓÃÇ°Èý´Î·´Ó¦ËùÏûºÄÁòËáµÄÖÊÁ¿£¬ÓÉ·´Ó¦ÖнðÊôÖÊÁ¿ÓëÁòËáÖÊÁ¿¹Øϵ£¬¼ÆËã³ö½ðÊôµÄÏà¶ÔÔ×ÓÖÊÁ¿£¬¸ù¾Ý½ðÊôµÄÏà¶ÔÔ×ÓÖÊÁ¿ÅжϽðÊô£»
£¨3£©¸ù¾Ý·´Ó¦µÄ»¯Ñ§·½³Ìʽ£¬ÓÉÁòËáÖÊÁ¿¼ÆËãÉú³ÉÁòËáÑεÄÖÊÁ¿¡¢·Å³öÇâÆøµÄÖÊÁ¿£¬ÁòËáÑεÄÖÊÁ¿Óë·´Ó¦ºóÈÜÒºÖÊÁ¿±È¿É¼ÆËãËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£»ÆäÖз´Ó¦ºóÈÜÒºÖÊÁ¿¿ÉÀûÓÃÖÊÁ¿Êغ㶨ÂɼÆËãÇóµÃ£®
½â´ð£º½â£º£¨1£©Í²»ÓëÁòËá·´Ó¦£¬¸ù¾ÝʵÑéÊý¾Ý¿ÉÖª£¬ÑùÆ·ÖÐ͵ÄÖÊÁ¿Îª6.0g£¬¸ÃºÏ½ðÖÐ͵ÄÖÊÁ¿·ÖÊý=
¡Á100%=60.0%
¹Ê´ð°¸Îª£º60.0%£»
£¨2£©£¨È¡µ½µÚÈý´ÎµÄʵÑéÊý¾ÝΪ׼£©ÉèM½ðÊôµ¥ÖʵÄÏà¶ÔÔ×ÓÖÊÁ¿Îªx£®
²Î¼Ó·´Ó¦µÄ½ðÊôµÄÖÊÁ¿=10.0g-6.1g=3.9g£®¶ø²Î¼Ó·´Ó¦µÄÁòËáÈÜÒºµÄÖÊÁ¿Îª14g¡Á3=42g£®
M+H2SO4¨TMSO4+H2¡ü
x 98
3.9g 42.0g¡Á14.0%
=
x="65" Òò´Ë¸Ã½ðÊôÊÇп£®
£¨Ò²¿ÉÑ¡È¡µÚÒ»´Î»òµÚ¶þ´ÎʵÑéµÄÊý¾Ý¼ÆË㣩
£¨3£©ÉèµÚÈý´ÎËùµÃÈÜÒºÖÐZnSO4µÄÖÊÁ¿Îªy£¬Éú³ÉH2µÄÖÊÁ¿Îªz£®
Zn+H2SO4 ¨TZnSO4+H2¡ü
98 161 2
42.0g¡Á14.0% y z
=
y=9.66g
=
z=0.12g
ZnSO4ÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊý=¡Á100%¡Ö21.1%
£¨Ò²¿ÉÑ¡È¡ZnµÄʵÑéÊý¾Ý¼ÆË㣩
´ð£º£¨2£©¸ÃºÏ½ð³ýÁËÍÍ⣬ÁíÒ»ÖÖ½ðÊôµÄÊÇп£»£¨3£©µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýԼΪ21.1%£®
µãÆÀ£º¸ù¾ÝÖÊÁ¿Êغ㶨ÂÉ£¬µÚÈý´Î¼ÓÈëÁòËá³ä·Ö·´Ó¦ºó£¬ËùµÃÈÜÒºµÄÖÊÁ¿=²Î¼Ó·´Ó¦½ðÊôµÄÖÊÁ¿+Ç°Èý´ÎËù¼ÓÏ¡ÁòËáµÄÖÊÁ¿-·Å³öÇâÆøµÄÖÊÁ¿
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿