ÌâÄ¿ÄÚÈÝ
ijÐËȤС×éͬѧΪ֤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁËÖкͷ´Ó¦£¬´Ó²»Í¬½Ç¶ÈÉè¼ÆÁËÈçÏÂʵÑé·½°¸£¬²¢½øÐÐʵÑ飮
·½°¸Ò»£ºÏÈÓÃpHÊÔÖ½²â¶¨NaOHÈÜÒºµÄpH£¬ÔٵμÓÑÎËᣬ²¢²»¶ÏÕñµ´ÈÜÒº£¬Í¬Ê±²â¶¨»ìºÏÈÜÒºµÄpH£¬Èç¹û²âµÃµÄpHÖð½¥±äСÇÒСÓÚ7£¬ÔòÖ¤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁË»¯Ñ§·´Ó¦£¬NaOHÈÜÒºÓëÏ¡ÑÎËá·¢Éú·´Ó¦µÄ»¯Ñ§·½³ÌʽÊÇ________£®
£¨1£©ÓÃpHÊÔÖ½²â¶¨ÈÜÒºµÄpHʱ£¬ÕýÈ·µÄ²Ù×÷ÊÇ£º________£®
£¨2£©¼òÊöÇ¿µ÷¡°²âµÃµÄpHСÓÚ7¡±µÄÀíÓÉ£º________£®
·½°¸¶þ£ºÏÈÔÚNaOHÈÜÒºÖеμӼ¸µÎ·Ó̪ÈÜÒº£¬ÈÜÒºÏÔºìÉ«£¬È»ºóÔٵμÓÑÎËᣬ¿É¹Û²ìµ½ºìÉ«Öð½¥Ïûʧ£¬ÔòÖ¤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁË»¯Ñ§·´Ó¦£®
¸Ã×éͬѧÔÚÏòNaOHÈÜÒºÖеμӷÓ̪ÈÜҺʱ£¬·¢ÏÖÁËÒ»¸öÒâÍâÏÖÏó£ºÇâÑõ»¯ÄÆÈÜÒºÖеÎÈë·Ó̪ÈÜÒº£¬ÈÜÒº±ä³ÉÁ˺ìÉ«£¬¹ýÁËÒ»»á¶ùºìÉ«¾ÍÏûʧÁË£®¸ÃС×é¶ÔÕâÖÖÒâÍâÏÖÏóµÄÔÒò×÷ÁËÈçϲÂÏ룺
¢Ù¿ÉÄÜÊÇ·Ó̪ÈÜÒºÓë¿ÕÆøÖеÄÑõÆø·´Ó¦£¬Ê¹ºìÉ«Ïûʧ£»
¢Ú¿ÉÄÜÊÇÇâÑõ»¯ÄÆÈÜÒºÓë¿ÕÆøÖеĶþÑõ»¯Ì¼·´Ó¦£¬Ê¹ºìÉ«Ïûʧ£®
£¨1£©ÇâÑõ»¯ÄÆÈÜÒºÓë¶þÑõ»¯Ì¼·´Ó¦µÄ»¯Ñ§·½³ÌʽÊÇ________£®
£¨2£©ÎªÑéÖ¤²ÂÏë¢Ù£¬¸Ã×éͬѧ×öÁËÈçÏÂʵÑ飺½«ÅäÖƵÄÇâÑõ»¯ÄÆÈÜÒº¼ÓÈÈ£¬²¢ÔÚÒºÃæÉÏ·½µÎһЩֲÎïÓÍ£¬È»ºóÔÚÀäÈ´ºóµÄÈÜÒºÖеÎÈë·Ó̪ÈÜÒº£®ÊµÑéÖС°¼ÓÈÈ¡±ºÍ¡°µÎÈëÖ²ÎïÓÍ¡±Ä¿µÄ·Ö±ðÊÇ________¡¢________£®ÊµÑé½á¹û±íÃ÷·Ó̪ÈÜÒººìÉ«ÏûʧÓë¿ÕÆøÖеÄÑõÆøÎ޹أ®
£¨3£©ÎªÑéÖ¤²ÂÏë¢Ú£¬¸Ã×éͬѧ×öÁËÈçÏÂʵÑ飺ȡÁËÒ»¶¨Á¿µÄNa2CO3ÈÜÒº£¬ÔÚÆäÖеÎÈë·Ó̪ÈÜÒº£¬·¢ÏÖÈÜÒºÒ²³ÊÏÖºìÉ«£¬Óɴ˿ɵóöÒÔÏÂÁ½µã½áÂÛ£º
½áÂÛ1£ºËµÃ÷Na2CO3ÈÜÒº³Ê________ÐÔ£»
½áÂÛ2£ºËµÃ÷·Ó̪ÈÜÒººìÉ«ÏûʧÓë¿ÕÆøÖеĶþÑõ»¯Ì¼Î޹أ®
£¨4£©¸ÃС×éͬѧͨ¹ý²éÔÄ×ÊÁϵÃÖª£ºµ±ÇâÑõ»¯ÄÆÈÜҺŨ¶ÈºÜ´óʱ£¬¾Í»á³öÏÖÉÏÊöÒâÍâÏÖÏó£®ÇëÉè¼ÆʵÑéÖ¤Ã÷¸Ã·½°¸ÖÐÈ¡ÓõÄNaOHÈÜҺŨ¶È¹ý´ó£º¢ÙʵÑé·½·¨________£¬¢Ú¹Û²ìµ½µÄÏÖÏó________£®
½â£º·½°¸Ò» ÇâÑõ»¯ÄÆÈÜÒººÍÏ¡ÑÎËá·´Ó¦ÄÜÉú³ÉÂÈ»¯ÄƺÍË®£¬¹ÊÌNaOH+HCl¨TNaCl+H2O£»
£¨1£©ÓÃpHÊÔÖ½²â¶¨ÈÜÒºµÄpHʱ£¬ÕýÈ·µÄ²Ù×÷ÊÇ£ºÓò£Á§°ôպȡ´ý²âÒº£¬µÎÔÚpHÊÔÖ½ÉÏ£¬ÔÙÓë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬¼´¿ÉµÃÈÜÒºµÄpH£¬¹ÊÌÓò£Á§°ôպȡ´ý²âÒº£¬µÎÔÚpHÊÔÖ½ÉÏ£¬ÔÙÓë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬¼´¿ÉµÃÈÜÒºµÄpH£»
£¨2£©ÑÎËá¹ýÁ¿£¬ÕâʱÈÜÒº³ÊËáÐÔ£¬ËùÒÔÈÜÒºµÄpHСÓÚ7£¬¹ÊÌÑÎËá¹ýÁ¿£¬ÕâʱÈÜÒº³ÊËáÐÔ£¬ËùÒÔÈÜÒºµÄpHСÓÚ7£®
·½°¸¶þ £¨1£©ÇâÑõ»¯ÄÆÈÜÒºÓë¶þÑõ»¯Ì¼·´Ó¦Éú³É̼ËáÄƺÍË®£¬¹ÊÌ2NaOH+CO2¨TNa2CO3+H2O£»
£¨2£©Ë®ÖÐÈÜÓÐÉÙÁ¿µÄÑõÆø£¬¼ÓÈÈÊÇΪÁ˳ýÈ¥ÈÜÒºÖеÄÑõÆø£¬µÎ¼ÓÖ²ÎïÓÍÊÇΪÁË·ÀÖ¹¿ÕÆøÖеÄÑõÆø½øÈ룬¹ÊÌ³ýÈ¥ÈÜÒºÖеÄÑõÆø£¬·ÀÖ¹¿ÕÆøÖеÄÑõÆø½øÈ룻
£¨3£©Ì¼ËáÄÆËäÈ»ÊÇÑΣ¬µ«ÊÇËüµÄË®ÈÜÒºÏÔ¼îÐÔ£¬¹ÊÌ¼î£»
£¨4£©¿ÉÒÔ²ÉÓÃÏòŨÇâÑõ»¯ÄÆÈÜÒºÖмÓˮϡÊ͵ķ½·¨À´Ö¤Ã÷£¬¹ÊÌ¢ÙʵÑé·½·¨£ºÏòÇâÑõ»¯ÄÆÈÜÒºÖеμ¸µÎ·Ó̪ÊÔÒº£¬¿É¹Û²ìµ½ÈÜÒºÏȱäºìÉ«£¬¹ýÒ»»áºìÉ«Ïûʧ£¬ÔÙÏòÈÜÒºÖмÓÈëË®½øÐÐÏ¡ÊÍ£¬¹Û²ìÏÖÏ󣮢ڹ۲쵽µÄÏÖÏó£ºÈÜÒºÓÖ±ä³ÉºìÉ«£®
·ÖÎö£º·½°¸Ò» ²â¶¨ÈÜÒºµÄpHÒª½«´ý²âҺͿÔÚpHÊÔÖ½ÉÏ£¬°ÑÏÔʾµÄÑÕÉ«Óë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬ÓÃÑÎËáµÎ¶¨ÇâÑõ»¯ÄÆÈÜҺʱ£¬Èç¹ûÑÎËá¹ýÁ¿£¬Ôòµ¼ÖÂÈÜÒºµÄpHСÓÚ7£®
·½°¸¶þ ÒªÕýÈ·Êéд»¯Ñ§·½³Ìʽ£®ÒòΪÑõÆøÊDz»Ò×ÈÜÓÚË®£¬ËùÒÔ¿ÕÆøÖеÄÑõÆøÓÐÒ»ÉÙ²¿·Ö»áÈÜÓÚË®£¬¼ÓÈÈ¿É°ÑË®ÖеÄÑõÆø³ýÈ¥£®Ö²ÎïÓ͸¡ÔÚË®ÃæÉÏ£¬ÄÜ·ÀÖ¹ÑõÆø½øÈëÈÜÒº£®Ì¼ËáÄÆÈÜÒºÏÔ¼îÐÔ£®¿ÉÓÃÏ¡ÊÍŨÇâÑõ»¯ÄÆÈÜÒºµÄ·½·¨¼ìÑéŨÇâÑõ»¯ÄÆÄÜʹ±äºìµÄ·Ó̪ÊÔÒºµÄºìÉ«Ïûʧ£®
µãÆÀ£º±¾ÌâÖ÷Òª¿¼²éÁËËá¼îÖкͷ´Ó¦ÒÔ¼°Ëá¼îÐÔÈÜÒºÓëËá¼îָʾ¼ÁÏ໥×÷ÓõÄÇé¿ö£¬¿ÉÒÔÒÀ¾ÝÒÑÓеÄ֪ʶ½øÐУ¬ÒªÇóͬѧÃǼÓÇ¿¶ÔÎïÖÊÐÔÖʵÄʶ¼Ç£¬ÒÔ±ãÁé»îÓ¦Óã®
£¨1£©ÓÃpHÊÔÖ½²â¶¨ÈÜÒºµÄpHʱ£¬ÕýÈ·µÄ²Ù×÷ÊÇ£ºÓò£Á§°ôպȡ´ý²âÒº£¬µÎÔÚpHÊÔÖ½ÉÏ£¬ÔÙÓë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬¼´¿ÉµÃÈÜÒºµÄpH£¬¹ÊÌÓò£Á§°ôպȡ´ý²âÒº£¬µÎÔÚpHÊÔÖ½ÉÏ£¬ÔÙÓë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬¼´¿ÉµÃÈÜÒºµÄpH£»
£¨2£©ÑÎËá¹ýÁ¿£¬ÕâʱÈÜÒº³ÊËáÐÔ£¬ËùÒÔÈÜÒºµÄpHСÓÚ7£¬¹ÊÌÑÎËá¹ýÁ¿£¬ÕâʱÈÜÒº³ÊËáÐÔ£¬ËùÒÔÈÜÒºµÄpHСÓÚ7£®
·½°¸¶þ £¨1£©ÇâÑõ»¯ÄÆÈÜÒºÓë¶þÑõ»¯Ì¼·´Ó¦Éú³É̼ËáÄƺÍË®£¬¹ÊÌ2NaOH+CO2¨TNa2CO3+H2O£»
£¨2£©Ë®ÖÐÈÜÓÐÉÙÁ¿µÄÑõÆø£¬¼ÓÈÈÊÇΪÁ˳ýÈ¥ÈÜÒºÖеÄÑõÆø£¬µÎ¼ÓÖ²ÎïÓÍÊÇΪÁË·ÀÖ¹¿ÕÆøÖеÄÑõÆø½øÈ룬¹ÊÌ³ýÈ¥ÈÜÒºÖеÄÑõÆø£¬·ÀÖ¹¿ÕÆøÖеÄÑõÆø½øÈ룻
£¨3£©Ì¼ËáÄÆËäÈ»ÊÇÑΣ¬µ«ÊÇËüµÄË®ÈÜÒºÏÔ¼îÐÔ£¬¹ÊÌ¼î£»
£¨4£©¿ÉÒÔ²ÉÓÃÏòŨÇâÑõ»¯ÄÆÈÜÒºÖмÓˮϡÊ͵ķ½·¨À´Ö¤Ã÷£¬¹ÊÌ¢ÙʵÑé·½·¨£ºÏòÇâÑõ»¯ÄÆÈÜÒºÖеμ¸µÎ·Ó̪ÊÔÒº£¬¿É¹Û²ìµ½ÈÜÒºÏȱäºìÉ«£¬¹ýÒ»»áºìÉ«Ïûʧ£¬ÔÙÏòÈÜÒºÖмÓÈëË®½øÐÐÏ¡ÊÍ£¬¹Û²ìÏÖÏ󣮢ڹ۲쵽µÄÏÖÏó£ºÈÜÒºÓÖ±ä³ÉºìÉ«£®
·ÖÎö£º·½°¸Ò» ²â¶¨ÈÜÒºµÄpHÒª½«´ý²âҺͿÔÚpHÊÔÖ½ÉÏ£¬°ÑÏÔʾµÄÑÕÉ«Óë±ê×¼±ÈÉ«¿¨¶ÔÕÕ£¬ÓÃÑÎËáµÎ¶¨ÇâÑõ»¯ÄÆÈÜҺʱ£¬Èç¹ûÑÎËá¹ýÁ¿£¬Ôòµ¼ÖÂÈÜÒºµÄpHСÓÚ7£®
·½°¸¶þ ÒªÕýÈ·Êéд»¯Ñ§·½³Ìʽ£®ÒòΪÑõÆøÊDz»Ò×ÈÜÓÚË®£¬ËùÒÔ¿ÕÆøÖеÄÑõÆøÓÐÒ»ÉÙ²¿·Ö»áÈÜÓÚË®£¬¼ÓÈÈ¿É°ÑË®ÖеÄÑõÆø³ýÈ¥£®Ö²ÎïÓ͸¡ÔÚË®ÃæÉÏ£¬ÄÜ·ÀÖ¹ÑõÆø½øÈëÈÜÒº£®Ì¼ËáÄÆÈÜÒºÏÔ¼îÐÔ£®¿ÉÓÃÏ¡ÊÍŨÇâÑõ»¯ÄÆÈÜÒºµÄ·½·¨¼ìÑéŨÇâÑõ»¯ÄÆÄÜʹ±äºìµÄ·Ó̪ÊÔÒºµÄºìÉ«Ïûʧ£®
µãÆÀ£º±¾ÌâÖ÷Òª¿¼²éÁËËá¼îÖкͷ´Ó¦ÒÔ¼°Ëá¼îÐÔÈÜÒºÓëËá¼îָʾ¼ÁÏ໥×÷ÓõÄÇé¿ö£¬¿ÉÒÔÒÀ¾ÝÒÑÓеÄ֪ʶ½øÐУ¬ÒªÇóͬѧÃǼÓÇ¿¶ÔÎïÖÊÐÔÖʵÄʶ¼Ç£¬ÒÔ±ãÁé»îÓ¦Óã®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ijÐËȤС×éͬѧΪ֤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁËÖкͷ´Ó¦£¬´Ó²»Í¬½Ç¶ÈÉè¼ÆÁËÈçÏÂʵÑé·½°¸£¬²¢½øÐÐʵÑ飮
I¡¢ÊµÑé·½°¸
·½°¸Ò»£ºÏÈÓÃpHÊÔÖ½²â¶¨NaOHÈÜÒºµÄpH£¬ÔٵμÓÑÎËᣬ²¢²»¶ÏÕñµ´ÈÜÒº£¬Í¬Ê±²â¶¨»ìºÏÈÜÒºµÄpH£¬Èç¹û²âµÃµÄpHÖð½¥±äСÇÒСÓÚ7£¬ÔòÖ¤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁË»¯Ñ§·´Ó¦£®
£¨1£©ÓÃpHÊÔÖ½²â¶¨NaOHÈÜÒºpHʱ£¬ÕýÈ·µÄ²Ù×÷ÊÇ£º £®
£¨2£©¼òÊöÇ¿µ÷¡°²âµÃµÄpHСÓÚ7¡±µÄÀíÓÉ£º £®
·½°¸¶þ£º»¯Ñ§·´Ó¦ÖÐͨ³£°éËæÓÐÄÜÁ¿µÄ±ä»¯£¬¿É½èÖú·´Ó¦Ç°ºóµÄζȱ仯À´ÅжϷ´Ó¦µÄ·¢Éú£®Èç¹û
NaOHÈÜÒºÓëÏ¡ÑÎËá»ìºÏÇ°ºóζÈÓб仯£¬ÔòÖ¤Ã÷·¢ÉúÁË»¯Ñ§·´Ó¦£®
¸Ã×éͬѧ½«²»Í¬Å¨¶ÈµÄÑÎËáºÍNaOHÈÜÒº¸÷10¿Ë»ìºÏ£¬ÓÃζȼƲⶨÊÒÎÂÏ»ìºÏÇ°ºóζȵı仯£¬²¢¼Ç¼ÁËÿ´Î»ìºÏÇ°ºóζȵÄÉý¸ßÖµ¡÷t£¨ÈçÏÂ±í£©£®
£¨1£©±íÖÐx= £®
£¨2£©Ä³Í¬Ñ§ÔÚûʹÓÃζȼƵÄÇé¿öÏ£¬Í¨¹ýÓÒͼËùʾװÖÃÍê³ÉÁËʵÑ飮Ôò¸Ãͬѧ¸ù¾Ý ÅжÏNaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁËÖкͷ´Ó¦£®
II¡¢ÊµÑéÖеÄÒâÍâÇé¿ö
ÔÚʵÑé¹ý³ÌÖУ¬ËûÃÇ·¢ÏÖÊ¢·ÅNaOHÈÜÒºµÄÊÔ¼ÁÆ¿Æ¿¿ÚºÍÏðƤÈûÉϳöÏÖÁË°×É«·ÛÄ©£®ËûÃÇÒÀ¾ÝËùѧµÄ»¯Ñ§ÖªÊ¶£¬¶ÔÕâÖÖ°×É«·ÛÄ©µÄ³É·Ö×÷ÁËÈçϲÂÏ룺¢Ù¿ÉÄÜÊÇNaOH£»¢Ú¿ÉÄÜÊÇNa2CO3£» ¢Û¿ÉÄÜÊÇNaOHºÍNa2CO3£®
£¨1£©Ð¡Ã÷ͬѧȡ°×É«·ÛÄ©ÉÙÐí£¬ÈÜÓÚË®ºó£¬ÏÈÏòÈÜÒºÖмÓÈë×ãÁ¿µÄ ÈÜÒº£¬¿´µ½°×É«³Áµí²úÉú£¬È»ºóÏòÉϲãÇåÒºÖмÓÈë·Ó̪ÊÔÒº£¬¿´µ½ÈÜÒº³ÊºìÉ«£¬ÑéÖ¤Á˲ÂÏë¢ÛÊÇÕýÈ·µÄ£®
£¨2£©ÎªÁ˽øÒ»²½Ñо¿£¬ÈýλͬѧȡÁË10.0gÉÏÊöÑùÆ·£¬ÀûÓõç×ÓÌìƽ¹²Í¬×öÁËÏÂͼËùʾµÄʵÑ飮
ʵÑéÊý¾Ý¼Ç¼ÈçÏ£º
ÊÔͨ¹ý·ÖÎö±íÖÐÊý¾Ý¼ÆËãÉÏÊöÑùÆ·Öи÷³É·ÝµÄÖÊÁ¿·ÖÊý£¨Ð´³ö¼ÆËã¹ý³Ì£©£® £®
£¨3£©ÓÐͬѧÌá³ö°´ÉÏÊöʵÑéËù²âµÃÊÔÑùÖÐNa2CO3ÖÊÁ¿·ÖÊý»áƫС£¬¸ÃͬѧµÄÀíÓÉÊÇ£¨ÊµÑé²Ù×÷¾ùÕýÈ·£©£º £®
I¡¢ÊµÑé·½°¸
·½°¸Ò»£ºÏÈÓÃpHÊÔÖ½²â¶¨NaOHÈÜÒºµÄpH£¬ÔٵμÓÑÎËᣬ²¢²»¶ÏÕñµ´ÈÜÒº£¬Í¬Ê±²â¶¨»ìºÏÈÜÒºµÄpH£¬Èç¹û²âµÃµÄpHÖð½¥±äСÇÒСÓÚ7£¬ÔòÖ¤Ã÷NaOHÈÜÒºÓëÏ¡ÑÎËá·¢ÉúÁË»¯Ñ§·´Ó¦£®
£¨1£©ÓÃpHÊÔÖ½²â¶¨NaOHÈÜÒºpHʱ£¬ÕýÈ·µÄ²Ù×÷ÊÇ£º
£¨2£©¼òÊöÇ¿µ÷¡°²âµÃµÄpHСÓÚ7¡±µÄÀíÓÉ£º
·½°¸¶þ£º»¯Ñ§·´Ó¦ÖÐͨ³£°éËæÓÐÄÜÁ¿µÄ±ä»¯£¬¿É½èÖú·´Ó¦Ç°ºóµÄζȱ仯À´ÅжϷ´Ó¦µÄ·¢Éú£®Èç¹û
NaOHÈÜÒºÓëÏ¡ÑÎËá»ìºÏÇ°ºóζÈÓб仯£¬ÔòÖ¤Ã÷·¢ÉúÁË»¯Ñ§·´Ó¦£®
¸Ã×éͬѧ½«²»Í¬Å¨¶ÈµÄÑÎËáºÍNaOHÈÜÒº¸÷10¿Ë»ìºÏ£¬ÓÃζȼƲⶨÊÒÎÂÏ»ìºÏÇ°ºóζȵı仯£¬²¢¼Ç¼ÁËÿ´Î»ìºÏÇ°ºóζȵÄÉý¸ßÖµ¡÷t£¨ÈçÏÂ±í£©£®
±àºÅ | ÑÎËá | NaOHÈÜÒº | ¡÷t/¡æ |
1 | 3.65% | 2.00% | 3.5 |
2 | 3.65% | 4.00% | x |
3 | 7.30% | 8.00% | 14 |
£¨2£©Ä³Í¬Ñ§ÔÚûʹÓÃζȼƵÄÇé¿öÏ£¬Í¨¹ýÓÒͼËùʾװÖÃÍê³ÉÁËʵÑ飮Ôò¸Ãͬѧ¸ù¾Ý
II¡¢ÊµÑéÖеÄÒâÍâÇé¿ö
ÔÚʵÑé¹ý³ÌÖУ¬ËûÃÇ·¢ÏÖÊ¢·ÅNaOHÈÜÒºµÄÊÔ¼ÁÆ¿Æ¿¿ÚºÍÏðƤÈûÉϳöÏÖÁË°×É«·ÛÄ©£®ËûÃÇÒÀ¾ÝËùѧµÄ»¯Ñ§ÖªÊ¶£¬¶ÔÕâÖÖ°×É«·ÛÄ©µÄ³É·Ö×÷ÁËÈçϲÂÏ룺¢Ù¿ÉÄÜÊÇNaOH£»¢Ú¿ÉÄÜÊÇNa2CO3£» ¢Û¿ÉÄÜÊÇNaOHºÍNa2CO3£®
£¨1£©Ð¡Ã÷ͬѧȡ°×É«·ÛÄ©ÉÙÐí£¬ÈÜÓÚË®ºó£¬ÏÈÏòÈÜÒºÖмÓÈë×ãÁ¿µÄ
£¨2£©ÎªÁ˽øÒ»²½Ñо¿£¬ÈýλͬѧȡÁË10.0gÉÏÊöÑùÆ·£¬ÀûÓõç×ÓÌìƽ¹²Í¬×öÁËÏÂͼËùʾµÄʵÑ飮
ʵÑéÊý¾Ý¼Ç¼ÈçÏ£º
³Æ Á¿ Ïî Ä¿ | ³Æ Á¿ ʱ ¼ä | ÖÊÁ¿£¨g£© |
ÊÔÑù | 10.00 | |
×°ÖÃ+Ï¡ÁòËáÖÊÁ¿ | 241.20 | |
×°ÖÃ+Ï¡ÁòËáÖÊÁ¿+ÊÔÑù | ·´Ó¦¿ªÊ¼ºó15Ãë | 249.20 |
×°ÖÃ+Ï¡ÁòËáÖÊÁ¿+ÊÔÑù | ·´Ó¦¿ªÊ¼ºó35Ãë | 249.00 |
×°ÖÃ+Ï¡ÁòËáÖÊÁ¿+ÊÔÑù | ·´Ó¦¿ªÊ¼ºó55Ãë | 249.00 |
£¨3£©ÓÐͬѧÌá³ö°´ÉÏÊöʵÑéËù²âµÃÊÔÑùÖÐNa2CO3ÖÊÁ¿·ÖÊý»áƫС£¬¸ÃͬѧµÄÀíÓÉÊÇ£¨ÊµÑé²Ù×÷¾ùÕýÈ·£©£º