ÌâÄ¿ÄÚÈÝ

7£®Ä³ÑùƷΪCuºÍCuOµÄ»ìºÏÎΪ²â¶¨ÑùÆ·ÖÐCuOµÄº¬Á¿£¬¼×¡¢ÒÒ¡¢±û¡¢¶¡ËÄλѧÉúÓÃͬһÖÖÑùÆ··Ö±ð½øÐÐʵÑ飬²âµÃµÄÊý¾ÝÈç±í£º
ѧÉú
ÎïÖÊÖÊÁ¿
¼×ÒÒ±û¶¡
ËùÈ¡¹ÌÌåÑùÆ·µÄÖÊÁ¿£¨g£©30252020
¼ÓÈëÁòËáÈÜÒºµÄÖÊÁ¿£¨g£©100100100120
·´Ó¦ºóÊ£Óà¹ÌÌåµÄÖÊÁ¿£¨g£©22171212
·ÖÎöʵÑéÊý¾Ý£¬»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©Ð´³öÑõ»¯Í­ÓëÁòËá·´Ó¦µÄ»¯Ñ§·½³Ìʽ£®
£¨2£©Çó»ìºÏÎïÖÐÑõ»¯Í­µÄÖÊÁ¿·ÖÊý£®
£¨3£©ÇóÁòËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊý£®

·ÖÎö ±¾ÌâÊÇÊý¾Ý·ÖÎöÌ⣬ÓÉ×îºóÁ½ÅÅ£¨¼´±û¶¡Á½ÈËÊý¾Ý£©Êý¾ÝµÃ³ö£¬ÔÚ´Ë·´Ó¦ÖУ¬»ìºÏÎïÖеÄCuOÒÑÍêÈ«¸úËá·´Ó¦£¬×îºóÊ£ÓàµÄ¹ÌÌåÈ«²¿ÎªCu£¬ËùÒԾͺÜÈÝÒ×Çó³öÑõ»¯Í­µÄÖÊÁ¿·ÖÊý£»¸ù¾ÝÍ­µÄÖÊÁ¿Çó³öÑõ»¯Í­µÄÖÊÁ¿£¬È»ºó¸ù¾Ý·½³Ìʽ¼´¿ÉÇó³öÁòËáÈÜÒºµÄŨ¶È£®

½â´ð ½â£º£¨1£©Ñõ»¯Í­ÓëÁòËá·´Ó¦Éú³ÉÁòËáÍ­ºÍË®£¬ËùÒÔ´ð°¸Îª£ºCuO+H2SO4=CuSO4+H2O
£¨2£©ÓÉ×îºóÁ½ÅÅ£¨¼´±û¶¡Á½ÈËÊý¾Ý£©Êý¾ÝµÃ³ö£¬ÔÚ´Ë·´Ó¦ÖУ¬»ìºÏÎïÖеÄCuOÒÑÍêÈ«¸úËá·´Ó¦£¬×îºóÊ£ÓàµÄ¹ÌÌåÈ«²¿ÎªCu£¬ËùÒÔ»ìºÏÎïÖÐÑõ»¯Í­µÄÖÊÁ¿·ÖÊýΪ£º$\frac{20g-12g}{20g}$¡Á100%=40%
£¨3£©£®ÒòΪ¼×ÒÒ±û¶¡Êý¾Ý±È½Ï£¬¿ÉÖª£¬±ûÖÐÇ¡ºÃ·´Ó¦£¬¼×ÒÒÖÐÑõ»¯Í­Ê£Ó࣬¶¡ÖÐÁòËáÊ£Ó࣮ËùÒÔ8gÑõ»¯Í­Ç¡ºÃºÍ100gÁòËáÈÜÒº·´Ó¦£®ÉèÁòËáÈÜÒºÖÐÈÜÖʵÄÖÊÁ¿·ÖÊýy
CuO+H2SO4=CuSO4+H2O
80      98              
8g      100y
ÁбÈÀýʽΪ£º$\frac{80}{8g}=\frac{98}{100g¡Áy}$
½âÖ®µÃ£ºy=9.8%
¹ÊÁòËáÈÜÒºµÄÖÊÁ¿·ÖÊýΪ9.8%£®

µãÆÀ ±¾Ìâ¹óÔÚÊý¾Ý·ÖÎö£¬ÕÒ³öÒÑÖªÁ¿£¬È»ºóÀûÓû¯Ñ§·½³Ìʽ¼ÆË㣬עÒâ½âÌâ²½Ö裮

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
2£®Ä³¿ÆÑ§ÐËȤС×é°´ÒÔϲ½Öè̽¾¿Ä³Ò»Î¶ÈÏÂÂÈ»¯ÄƱ¥ºÍÈÜÒºµÄËá¼î¶È£®
£¨1£©²ÂÏë»ò¼ÙÉ裺¢ÙpHÖµ£¼7£»¢ÚpH=7£»¢ÛpH£¾7£®
£¨2£©Éè¼ÆºÍʵÑ飺
Òª²â¶¨¸ÃÈÜÒºµÄËá¼î¶È£¬³ýÁËÒªÓÐÕýÈ·µÄ²Ù×÷²½ÖèÍ⣬ÆäÖв»ÄܲÉÓÃÏÂÁÐÎïÖÊÖеĢڢۣ¨ÌîÐòºÅ£©À´½øÐÐʵÑ飮
¢ÙPHÊÔÖ½¡¡¡¡¢Ú×ÏɫʯÈïÊÔÒº¢Û·Ó̪ÊÔÒº
×éÄÚͬѧ½øÐÐÁËÈçÏÂʵÑ飺
¼×ͬѧ£ºÈ¡pHÊÔÖ½·ÅÔÚ²£Á§Æ¬ÉÏ£¬Óò£Á§°ôպȡÂÈ»¯ÄÆÈÜÒºÕ´ÔÚpHÊÔÖ½ÉÏ£¬°ÑÊÔÖ½ÏÔʾµÄÑÕÉ«Óë±ê×¼±ÈÉ«¿¨±È½Ï£¬²âµÃpH=7£»
ÒÒͬѧ£ºÈ¡pHÊÔÖ½·ÅÔÚ²£Á§Æ¬ÉÏ£¬ÏÈÓÃÕôÁóË®½«PHÊÔֽʪÈó£¬È»ºóÓò£Á§°ôպȡÂÈ»¯ÄÆÈÜÒºÕ´ÔÚpHÊÔÖ½ÉÏ£¬°ÑÊÔÖ½ÏÔʾµÄÑÕÉ«Óë±ê×¼±ÈÉ«¿¨±È½Ï£¬²âµÃpH=7£»
±ûͬѧ£º½«pHÊÔÖ½Ö±½Ó½þÈëÂÈ»¯ÄÆÈÜÒºÖУ¬°ÑÊÔÖ½ÏÔʾµÄÑÕÉ«Óë±ê×¼±ÈÉ«¿¨±È½Ï£¬²âµÃpH=7£®
ÔÚÕâÈýλͬѧÖУ¬²Ù×÷¹æ·¶µÄÊǼף¬ÆäÓàͬѧ²Ù×÷ÉϵĴíÎóÊÇÒÒÓÃÕôÁóË®ÈóʪpHÊÔÖ½ÁË£¬±û°ÑpHÊÔÖ½½þÈëÈÜÒºÁË
£¨3£©½áÂۺͷÖÎö£º±ûͬѧµÃ³ö¡°·²ÊÇÑÎÈÜÒºµÄpHÖµ¶¼µÈÓÚ7¡±µÄ½áÂÛ£¬ÄãÈÏΪ¸Ã½áÂÛÊÇ·ñÕýÈ·£¿
²»ÕýÈ·£¨Ìî¡°ÕýÈ·¡±»ò¡°²»ÕýÈ·¡±£©ÇëÔÙ¾ÙÒ»ÀýÖ¤Ã÷ÄãµÄÅжϣºÖÐÐÔµÄÀýÈçÂÈ»¯ÄÆ¡¢ËáÐÔµÄÀýÈçÁòËáï§¡¢¼îÐÔµÄÀýÈç̼ËáÄÆ£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø