ÌâÄ¿ÄÚÈÝ
13£®Õý¶¡È©ÊÇÒ»ÖÖ»¯¹¤ÔÁÏ£®Ä³ÊµÑéС×éÀûÓÃÈçÓÒ×°ÖúϳÉÕý¶¡È©£®·¢ÉúµÄ·´Ó¦ÈçÏ£ºCH3CH2CH2CH2OH$¡ú_{H_{2}SO_{4}¡÷}^{Na_{2}Cr_{2}O_{7}}$CH3CH2CH2CHO
·´Ó¦ÎïºÍ²úÎïµÄÏà¹ØÊý¾ÝÁбíÈçÏ£º
·Ðµã/¡æ | ÃܶÈ/£¨g•cm-3£© | Ë®ÖÐÈܽâÐÔ | |
Õý¶¡´¼ | 117.2 | 0.810 9 | ΢ÈÜ |
Õý¶¡È© | 75.7 | 0.801 7 | ΢ÈÜ |
½«6.0g Na2Cr2O7·ÅÈë100mLÉÕ±ÖУ¬¼Ó30mLË®Èܽ⣬ÔÙ»ºÂý¼ÓÈë5mLŨÁòËᣬ½«ËùµÃÈÜҺСÐÄתÒÆÖÁBÖУ¬ÔÚAÖмÓÈë4.0gÕý¶¡´¼ºÍ¼¸Á£·Ðʯ£¬¼ÓÈÈ£®µ±ÓÐÕôÆø³öÏÖʱ£¬¿ªÊ¼µÎ¼ÓBÖÐÈÜÒº£®µÎ¼Ó¹ý³ÌÖб£³Ö·´Ó¦Î¶ÈΪ90¡«95¡æ£¬ÔÚEÖÐÊÕ¼¯90¡æÒÔϵÄÁó·Ö£®½«Áó³öÎïµ¹Èë·ÖҺ©¶·ÖУ¬·Öȥˮ²ã£¬Óлú²ã¸ÉÔïºóÕôÁó£¬ÊÕ¼¯75¡«77¡æÁó·Ö£¬²úÁ¿2.0g£®
»Ø´ðÏÂÁÐÎÊÌ⣺
£¨1£©Èô¼ÓÈȺó·¢ÏÖδ¼Ó·Ðʯ£¬Ó¦²ÉÈ¡µÄÕýÈ··½·¨ÊÇÀäÈ´ºó²¹¼Ó£®
£¨2£©ÉÏÊö×°ÖÃͼÖУ¬DÒÇÆ÷µÄÃû³ÆÊÇÖ±ÐÎÀäÄý¹Ü£®
£¨3£©½«Õý¶¡È©´Ö²úÆ·ÖÃÓÚ·ÖҺ©¶·ÖзÖˮʱ£¬Ë®ÔÚÏ£¨Ìî¡°ÉÏ¡±»ò¡°Ï¡±£©²ã£®
£¨4£©·ÖҺ©¶·Ê¹ÓÃÇ°±ØÐë½øÐеIJÙ×÷ÊÇc£¨ÌîÕýÈ·´ð°¸±êºÅ£©£®
A£®Èóʪ¡¡¡¡ B£®¸ÉÔï¡¡¡¡¡¡ C£®¼ì©¡¡¡¡D£®±ê¶¨£®
·ÖÎö ±¾ÌâÊÇÀûÓô¼µÄ´ß»¯Ñõ»¯ÖƱ¸Õý¶¡È©µÄʵÑé²Ù×÷Ì⣬Ö÷ÒªÉæ¼°·´Ó¦»ìºÏ»ìºÏ¼ÓÈÈ·À±©·Ð´ëÊ©¼°Ó¦¼±´¦Àí·½·¨¡¢²Ù×÷¹ý³ÌÖÐÉú³ÉÎïµÄÀäÄýÒÔ¼°´Ö²úÆ·µÄ·ÖÀëÌá´¿£»
£¨1£©»ìºÏ¼ÓÈÈΪ·ÀÖ¹·ÀÖ¹±©·ÐÒª¼ÓÈë·Ðʯ£¬Èô¼ÓÈȺó·¢ÏÖδ¼Ó·Ðʯ£¬Ó¦¸ÃÀäÈ´ºó²¹¼Ó£»
£¨2£©ÀûÓÃÒÇÆ÷D¶ÔÕôÆû½øÐÐÀäÄý£¬´ËDÒÇÆ÷µÄÃû³ÆÖ±ÐÎÀäÄý¹Ü£»
£¨3£©ÓɱíÖÐÊý¾Ý¿ÉÖª£¬Õý¶¡È©ÃܶÈСÓÚË®µÄÃܶȣ¬¾Ý´ËÅжϣ»
£¨4£©·ÖҺ©¶·Ê¹ÓÃÇ°±ØÐë½øÐеĵÚÒ»²½²Ù×÷ÊǼì©£®
½â´ð ½â£º£¨1£©·ÀÖ¹±©·ÐÒª¼ÓÈë·Ðʯ£¬Èô¼ÓÈȺó·¢ÏÖδ¼Ó·Ðʯ£¬Ó¦¸ÃÀäÈ´ºó²¹¼Ó£¬¹Ê´ð°¸Îª£º·ÀÖ¹±©·Ð£»ÀäÈ´ºó²¹¼Ó£»
£¨2£©DÒÇÆ÷ÊÇÀäÄý×°Öã¬Ãû³ÆΪֱÐÎÀäÄý¹Ü£¬¹Ê´ð°¸Îª£ºÖ±ÐÎÀäÄý¹Ü£»
£¨3£©Õý¶¡È©ÃܶÈΪ0.8017 g•cm-3£¬Ð¡ÓÚË®µÄÃܶȣ¬Õñµ´¡¢¾²ÖᢷֲãºóË®²ãÔÚÏ·½£¬¹Ê´ð°¸Îª£ºÏ£»
£¨4£©·ÖҺ©¶·ÒòÓлîÈû£¬Ê¹ÓÃÇ°±ØÐë½øÐеĵÚÒ»Ïî²Ù×÷ÊǼì©£¬¹Ê´ð°¸Îª£ºc£®
µãÆÀ ±¾Ì⿼²éÓлú»¯Ñ§ÊµÑé»ù±¾²Ù×÷µÈ£¬ÄѶȲ»´ó£¬×¢Òâ¶Ô»ù´¡ÖªÊ¶µÄÀí½âÕÆÎÕͬʱ³ä·ÖÀûÓÃÌâÖÐÐÅÏ¢·ÖÎöÎÊÌ⣮
A£® | ÖƱ¸¼îʽÁòËáÌúÀûÓÃÁ˹ýÑõ»¯ÇâµÄÑõ»¯ÐÔ | |
B£® | Ϊ·ÀÖ¹NH4HCO3·Ö½â£¬Éú²úFeCO3ÐèÔڽϵÍζÈϽøÐÐ | |
C£® | ¿ÉÓÃKSCNÈÜÒº¼ìÑ飨NH4£©2Fe£¨SO4£©2ÊÇ·ñ±»Ñõ»¯ | |
D£® | ÖƱ¸£¨NH4£©2Fe£¨SO4£©2ÀûÓÃÁËËüµÄÈܽâ¶È±ÈFeSO4µÄÈܽâ¶È´óÕâÒ»ÐÔÖÊ |
A£® | t1ʱn£¨X£©=0.04 mol | |
B£® | t1µ½t2£¬»ìºÏÆøÌåµÄƽ¾ùÏà¶Ô·Ö×ÓÁ¿Ôö´ó | |
C£® | ÓûÌá¸ßƽºâÌåϵÖÐYµÄº¬Á¿£¬¿ÉÉý¸ßÌåϵζȻò¼õÉÙZµÄÁ¿ | |
D£® | ÆäËûÌõ¼þ²»±ä£¬ÔÙ³äÈë0.1 mol ÆøÌåX£¬Æ½ºâÕýÏòÒƶ¯£¬XµÄת»¯ÂʼõÉÙ |