ÔÚÎÒ¹úÇຣºþµØÇøÓÐÒ»ÖÖ˵·¨£¬¶¬ÌìÀ̼ÏÄÌìɹÑΣ®ÕâÀïµÄ¼îÊÇÖ¸Na2CO3£¬ÑÎÊÇÖ¸NaCl£®ÈËÃÇ´ÓÑκþÖÐÀ̵õļî»áº¬ÓÐÉÙÁ¿µÄNaCl£®Ä³Ñо¿ÐÔѧϰС×é³ÆÈ¡º¬NaClµÄNa2CO3£¬¹ÌÌå25.0g£¬½«ÆäÅäÖƳÉÈÜÒº£¬ÔÙÏòÆäÖÐÖðµÎ¼ÓÈë×ãÁ¿µÄÈÜÖÊÖÊÁ¿·ÖÊýΪ7.3%µÄÏ¡ÑÎËᣬʹÆøÌåÍêÈ«·Å³ö£¬¹²ÊÕ¼¯µ½8.8g¶þÑõ»¯Ì¼ÆøÌ壮ÊÔ¼ÆË㣺£¨1£©Ô­¹ÌÌåÖÐNa2CO3£¬µÄÖÊÁ¿·ÖÊý£»£¨2£©·´Ó¦ÖÐÏûºÄµÄÑÎËáµÄ×ÜÖÊÁ¿

£¨1£©84.8%£®£¨2£©200g£®

½âÎöÊÔÌâ·ÖÎö£º£¨1£©Éè̼ËáÄƵÄÖÊÁ¿Îªx£¬ÑÎËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿Îªy£®
Na2CO3+2HCl=2NaCl+H2O+CO2¡ü
106     73            44
x      y            8.8g

x=21.2g

y=14.6g
%=84.8%
´ð£ºÔ­¹ÌÌåÖÐ̼ËáÄƵÄÖÊÁ¿·ÖÊýΪ84.8%£®
£¨2£©·´Ó¦ÖÐÏûºÄµÄÑÎËáµÄ×ÜÖÊÁ¿Îª£º="200g" ´ð£º·´Ó¦ÖÐÏûºÄÑÎËáµÄ×ÜÖÊÁ¿Îª200g£®
¿¼µã£º¸ù¾Ý»¯Ñ§·´Ó¦·½³ÌʽµÄ¼ÆË㣻ÓйØÈÜÖÊÖÊÁ¿·ÖÊýµÄ¼òµ¥¼ÆË㣮

Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

½«50gľ̿·ÛÓëÑõ»¯Í­×é³ÉµÄºÚÉ«¹ÌÌå»ìºÏÎï·ÅÈëÊÔ¹ÜÖиßμÓÈÈ£¬´ý·´Ó¦Íê³Éºó£¬ÀäÈ´³ÆµÃÊ£Óà¹ÌÌåµÄÖÊÁ¿Îª39g¡£ÊÔͨ¹ý¼ÆËãÈ·¶¨Ê£ÓàµÄ39g¹ÌÌåµÄ×é³É¡£

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

ʵÑéÊÒÐèÓÃÂÈËá¼ØÖÆÈ¡ÑõÆø£¬»¯Ñ§·½³Ìʽ£º 2 KClO3KCl + 3O2¡ü¡£ÏÖ½« 29.4g ÂÈËá¼ØÓë 5.6g ¶þÑõ»¯Ã̵ĻìºÏÎï¼ÓÈÈÒ»¶Îʱ¼äºó£¬ÀäÈ´£¬³ÆÁ¿Ê£Óà¹ÌÌåµÄÖÊÁ¿Îª 25.4g¡£»Ø´ð£º
£¨1£©Éú³ÉÑõÆøµÄÖÊÁ¿ÊǶàÉÙ£¿
£¨2£©Ê£Óà¹ÌÌåÖÐÂÈ»¯¼ØÖÊÁ¿ÊǶàÉÙ£¿
£¨3£©¹ÌÌåÊ£ÓàÎïÖÐÊÇ·ñ»¹º¬ÓÐÂÈËá¼Ø£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

½«148gÂÈ»¯¸ÆÈÜÒºÓëÒ»¶¨Á¿µÄ̼ËáÄÆÈÜÒº»ìºÏ£¬Ç¡ºÃÍêÈ«·´Ó¦£®¹ýÂ˺󣬵õ½20g³ÁµíºÍÈÜÖÊÖÊÁ¿·ÖÊý10%µÄÈÜÒº£®Çó£ºÌ¼ËáÄÆÈÜÒºÖÐÈÜÖÊÖÊÁ¿·ÖÊýÊǶàÉÙ£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

ijͬѧ¶ÔijµØ¹¤Òµ·ÏË®£¨º¬ÓÐÁòËáºÍÑÎËᣩÖеÄH2SO4½øÐвⶨ£®È¡50g¸Ã·ÏË®ÓÚÉÕ±­ÖУ¬¼ÓÈë×ãÁ¿µÄBaCl2ÈÜÒº£¬³ä·Ö·´Ó¦ÖУ¬¹ýÂË¡¢Ï´µÓ¡¢¸ÉÔïµÃµ½BaSO4¹ÌÌå11.65g£®Í¨¹ý¼ÆËã»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©50g¸Ã·ÏË®ÖÐH2SO4µÄÖÊÁ¿
£¨2£©Èô¸ÄÓÃKOHÈÜÒºÀ´²â¶¨50g¸Ã·ÏË®ÖÐH2SO4µÄº¬Á¿£¬½á¹û»á¡¡ ¡¡£¨Ìî¡°Æ«¸ß¡±¡¢¡°Æ«µÍ¡±¡¢¡°²»±ä¡±£©£¬ÀíÓÉÊÇ¡¡                                      ¡¡£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

ʵÑéÊÒÓÐÆ¿´æ·ÅÒ»¶Îʱ¼äµÄÇâÑõ»¯ÄƹÌÌ壬²¿·ÖÒѱäÖÊΪ̼ËáÄÆ£®È¡2.00g¸Ã¹ÌÌ壬ÏȼÓË®³ä·ÖÈܽ⣬ÔÙ¼ÓÈë×ãÁ¿³ÎÇåʯ»ÒË®£¬Éú³É1.00g̼Ëá¸Æ³Áµí£®¼ÆË㣺
£¨1£©2.00g¸Ã¹ÌÌåÖÐ̼ËáÄƵÄÖÊÁ¿£»
£¨2£©¸ÃÇâÑõ»¯ÄƹÌÌåµÄ±äÖʳ̶ȣ®£¨¼ÆËã½á¹û±£Áôµ½1%£©
£¨Ìáʾ£ºÇâÑõ»¯ÄƵıäÖʳ̶ÈÊÇÖ¸ÒѱäÖʵÄÇâÑõ»¯ÄÆÕ¼±äÖÊÇ°ÇâÑõ»¯ÄƵÄÖÊÁ¿·ÖÊý£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

ij»¯¹¤³§Éú²úµÄ´¿¼î²úÆ·£¨º¬ÓÐÉÙÁ¿ÂÈ»¯ÄÆ£©µÄ°ü×°´üÉÏ×¢Ã÷£ºÌ¼ËáÄÆ¡Ý96%£®
ΪÁ˲ⶨ¸Ã²úÆ·ÖÐ̼ËáÄƵÄÖÊÁ¿·ÖÊýÊÇ·ñÊôʵ£¬Ïò4¸ö·Ö±ðÊ¢ÓÐŨ¶ÈÏàͬ¡¢ÖÊÁ¿¾ùΪ100gÏ¡ÑÎËáµÄÉÕ±­ÖУ¬·Ö±ð·ÅÈ벻ͬÖÊÁ¿µÄ´¿¼î²úÆ·£¬³ä·Ö·´Ó¦ºó£¬³ÆÁ¿ÉÕ±­ÖÐÊ£ÓàÎïµÄÖÊÁ¿£¬ÊµÑéÊý¾ÝÈçÏÂ±í£º

Ëù³ÆÁ¿µÄÎïÖÊ
ʵÑé1
ʵÑé2
ʵÑé3
ʵÑé4
¼ÓÈë´¿¼î²úÆ·ÖÊÁ¿/g
2.8
5.6
11.2
14
ÉÕ±­ÖÐÊ£ÓàÎïÖÊÁ¿/g
101.7
103.4
106.8
109.6
 
Çë¼ÆË㣨×îºó½á¹û±£ÁôһλСÊý£©£º
£¨1£©¸Ã´¿¼î²úÆ·ÖÐ̼ËáÄÆÖÊÁ¿·ÖÊýµÄ±ê×¢ÊÇ·ñÕæʵ£®
£¨2£©ËùÓÃÑÎËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®
£¨3£©Ç¡ºÃÍêÈ«·´Ó¦Ê±£¬ËùµÃÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

ijͬѧΪ²â¶¨Ä³´óÀíʯÖÐ̼Ëá¸Æ£¨¼ÙÉ裺´óÀíʯÖеÄÔÓÖʲ»ÓëÑÎËá·´Ó¦£©µÄÖÊÁ¿·ÖÊý£¬È¡ËÄ·ÝÑùÆ··Ö±ð¼ÓÏ¡ÑÎËá·´Ó¦£¬ÆäʵÑéÊý¾Ý¼Ç¼ÈçÏÂ:

ÑùÆ·
µÚ1·Ý
µÚ2·Ý
µÚ3·Ý
µÚ4·Ý
È¡ÑùÆ·ÖÊÁ¿£¨g£©
10.0
10.0
10.0
10.0
È¡Ï¡ÑÎËáÖÊÁ¿£¨g£©
25.0
50.0
75.0
100.0
²úÉúÆøÌåÖÊÁ¿£¨g£©
1.1
X
3.3
3.3
 
Çë¼ÆË㣺
£¨1£©¾­¹ý·ÖÎö£¬ÔÚµÚ1´Î²âµÃµÄÊý¾ÝÖУ¬        £¨ÌîÎïÖÊ£©ÍêÈ«·´Ó¦ÁË£»
£¨2£©±í¸ñÖÐX=           g£»
£¨3£©¸Ã´óÀíʯÑùÆ·ÖÐ̼Ëá¸ÆµÄÖÊÁ¿·ÖÊýÊǶàÉÙ£¿
£¨4£©»­³öÔÚ10.0gÑùÆ·ÖмÓÏ¡ÑÎËáµÄÖÊÁ¿Óë²úÉúÆøÌåÖÊÁ¿±ä»¯¹ØϵµÄʾÒâͼ£»

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º³õÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º¼ÆËãÌâ

¸ù¾ÝͼʾµÄÐÅÏ¢¼ÆËã

£¨1£©¼ÓÈëµÄÏ¡ÁòËáÖÊÁ¿Îª      ¿Ë£®
£¨2£©¼ÓÈëµÄÏ¡ÁòËáµÄÈÜÖÊÖÊÁ¿·ÖÊýÊǶàÉÙ£¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸