ÌâÄ¿ÄÚÈÝ
ijͬѧÓÃÖÊÁ¿·ÖÊýΪ98£¥¡¢ÃܶÈΪ1.84 g£¯cm3µÄŨÁòËᣬÅäÖÆ100 mL 2 mol£¯L H2SO4ÈÜÒº£¬²¢½øÐÐÓйصÄʵÑé¡£ÊԻشðÏÂÁÐÎÊÌ⣺
£¨1£©¼ÆËãËùÐèŨÁòËáµÄÌå»ý¡£
£¨2£©´ÓÏÂÁÐÒÇÆ÷ÖÐÑ¡³öʵÑéËùÐèÒªµÄÒÇÆ÷ (ÌîÐòºÅ)¡£
E£®ÍÐÅÌÌìƽ F£®·ÖҺ©¶· G£®²£Á§°ô I£®½ºÍ·µÎ¹Ü
£¨3£©¸ÃͬѧΪ²â¶¨Ä³Ì¼ËáÄÆÑùÆ·µÄ´¿¶È£¬È¡2.5 g¸Ã̼ËáÄÆÑùÆ·£¬¼ÓÈë×ãÁ¿ÉÏÊöÏ¡ÁòËᡣ̼ËáÄÆÍêÈ«·´Ó¦£¨ÔÓÖʲ»·´Ó¦£©£¬Éú³É¶þÑõ»¯Ì¼ÆøÌå448mL£¨±ê×¼×´¿ö£©¡£Çó¸Ã̼ËáÄÆÑùÆ·ÖÐNa2CO3µÄÖÊÁ¿·ÖÊý¡£
£¨1£©¼ÆËãËùÐèŨÁòËáµÄÌå»ý¡£
£¨2£©´ÓÏÂÁÐÒÇÆ÷ÖÐÑ¡³öʵÑéËùÐèÒªµÄÒÇÆ÷ (ÌîÐòºÅ)¡£
A£®10 mLÁ¿Í² | B£®20 mLÁ¿Í² | C£®100 mLÉÕ± | D£®100 mLÈÝÁ¿Æ¿ |
£¨3£©¸ÃͬѧΪ²â¶¨Ä³Ì¼ËáÄÆÑùÆ·µÄ´¿¶È£¬È¡2.5 g¸Ã̼ËáÄÆÑùÆ·£¬¼ÓÈë×ãÁ¿ÉÏÊöÏ¡ÁòËᡣ̼ËáÄÆÍêÈ«·´Ó¦£¨ÔÓÖʲ»·´Ó¦£©£¬Éú³É¶þÑõ»¯Ì¼ÆøÌå448mL£¨±ê×¼×´¿ö£©¡£Çó¸Ã̼ËáÄÆÑùÆ·ÖÐNa2CO3µÄÖÊÁ¿·ÖÊý¡£
£¨1£©10.9mL£¨3·Ö£©
£¨2£©B¡¢C¡¢D¡¢G¡¢I£¨¸÷1·Ö£¬¹²5·Ö£©
£¨3£©84.8£¥£¨2·Ö£©
£¨2£©B¡¢C¡¢D¡¢G¡¢I£¨¸÷1·Ö£¬¹²5·Ö£©
£¨3£©84.8£¥£¨2·Ö£©
£¨1£©Ï¡Ê͹ý³ÌÖÐÈÜÖʵÄÖÊÁ¿ÊDz»±äµÄ£¬ËùÒÔŨÁòËáµÄÌå»ýÊÇ¡£
£¨2£©¸ù¾ÝŨÁòËáµÄÌå»ý¿ÉÖª£¬ÑϸñÑ¡Ôñ2mlÁ¿Í²¡£Ï¡ÊÍÐèÒªÉÕ±ºÍ²£Á§°ô£¬×ªÒÆÐèÒªÈÝÁ¿Æ¿ºÍ½ºÍ·µÎ¹Ü£¬ËùÒÔ´ð°¸Ñ¡B¡¢C¡¢D¡¢G¡¢I¡£
£¨3£©·´Ó¦µÄ·½³ÌʽΪ Na2CO3£«H2SO4=Na2SO4£«CO2¡ü£«H2O
106g 22.4L
m 0.448L
ËùÒÔm£½
̼ËáÄÆÑùÆ·ÖÐNa2CO3µÄÖÊÁ¿·ÖÊýΪ
£¨2£©¸ù¾ÝŨÁòËáµÄÌå»ý¿ÉÖª£¬ÑϸñÑ¡Ôñ2mlÁ¿Í²¡£Ï¡ÊÍÐèÒªÉÕ±ºÍ²£Á§°ô£¬×ªÒÆÐèÒªÈÝÁ¿Æ¿ºÍ½ºÍ·µÎ¹Ü£¬ËùÒÔ´ð°¸Ñ¡B¡¢C¡¢D¡¢G¡¢I¡£
£¨3£©·´Ó¦µÄ·½³ÌʽΪ Na2CO3£«H2SO4=Na2SO4£«CO2¡ü£«H2O
106g 22.4L
m 0.448L
ËùÒÔm£½
̼ËáÄÆÑùÆ·ÖÐNa2CO3µÄÖÊÁ¿·ÖÊýΪ
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿