ÌâÄ¿ÄÚÈÝ
ʵÑéÊÒÓûÅäÖÆ1000gÈÜÖÊÖÊÁ¿·ÖÊýΪ4%µÄÇâÑõ»¯ÄÆÈÜÒº£®
·½°¸¼×£»ÅäÖò½ÖèΪ£º
£¨1£©¼ÆË㣺ÐèÇâÑõ»¯ÄƹÌÌå g£¬Ë® mL£¨Ë®µÄÃܶÈÊÇ1g/cm3£©£®
£¨2£©³ÆÁ¿£ºÓÃÖÊÁ¿Îª23.1gµÄÉÕ±×÷³ÆÁ¿ÈÝÆ÷£¬ÔÚÍÐÅÌÌìƽÉϳÆÈ¡ÇâÑõ»¯ÄƹÌÌåʱ£¬Ê¢ÓÐÇâÑõ»¯ÄƹÌÌåµÄÉÕ±Ó¦·ÅÔÚ×ó ÅÌ£¨Ìî¡°×ó¡±»ò¡°ÓÒ¡±£©£¬ÔÚϱíËùÁеÄíÀÂëÖУ¬Ñ¡³öËùÐèíÀÂ루´ò¡°¡Ì¡±±íʾѡÓã©£¬
²¢ÔÚÏÂÁбê³ßÖÐÑ¡³öÄÜÕýÈ·±íʾÓÎÂëλÖõÄÑ¡Ïî £¨Ìî×Öĸ£©
£¨3£©Èܽ⣺½«ÇâÑõ»¯ÄƹÌÌåÈÜÓÚË®£¬Óà ²£½Á°è£¬Ê¹ÇâÑõ»¯ÄÆÈ«²¿Èܽ⣬ÀäÈ´ÖÁÊÒΣ®
£¨4£©°ÑÅäºÃµÄÈÜҺװÈëÊÔ¼ÁÆ¿£¬¸ÇºÃÆ¿¸Ç²¢ÌùÉϱêÇ©£¬·ÅÈëÊÔ¼Á¹ñÖУ®
ÔÚÅäÖùý³ÌÖУ¬µ¼ÖÂÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÓÐ £¨Ð´Ò»ÖÖ£©
£¨5£©ÈôÀÏʦÌṩµÄÒ©Æ·ÓÐ500g8%µÄÇâÑõ»¯ÄÆÈÜÒº£¬500g1%µÄÇâÑõ»¯ÄÆÈÜÒº£¬×ãÁ¿µÄÇâÑõ»¯ÄƹÌÌåºÍË®£¬³ýÁËÉÏÊöÅäÖ÷½°¸Í⣬ÇëÄãÔÙÉè¼Æ³öÁ½ÖÖÅäÖ÷½°¸£¨Ð´³öËùÐèÒ©Æ·µÄÃû³Æ¼°ÊýÁ¿£©
ÒÒ£º ±û£º
£¨6£©ÔÚÉÏÊöËùÉæ¼°µÄ·½°¸ÖÐ×î¼Ñ·½°¸Îª ÀíÓÉÊÇ £®
·½°¸¼×£»ÅäÖò½ÖèΪ£º
£¨1£©¼ÆË㣺ÐèÇâÑõ»¯ÄƹÌÌå
£¨2£©³ÆÁ¿£ºÓÃÖÊÁ¿Îª23.1gµÄÉÕ±×÷³ÆÁ¿ÈÝÆ÷£¬ÔÚÍÐÅÌÌìƽÉϳÆÈ¡ÇâÑõ»¯ÄƹÌÌåʱ£¬Ê¢ÓÐÇâÑõ»¯ÄƹÌÌåµÄÉÕ±Ó¦·ÅÔÚ×ó
íÀÂë/g | 100 | 50 | 20 | 20 | 10 | 5 |
´ò¡°¡Ì¡±±íʾѡÓà |
£¨3£©Èܽ⣺½«ÇâÑõ»¯ÄƹÌÌåÈÜÓÚË®£¬ÓÃ
£¨4£©°ÑÅäºÃµÄÈÜҺװÈëÊÔ¼ÁÆ¿£¬¸ÇºÃÆ¿¸Ç²¢ÌùÉϱêÇ©£¬·ÅÈëÊÔ¼Á¹ñÖУ®
ÔÚÅäÖùý³ÌÖУ¬µ¼ÖÂÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÓÐ
£¨5£©ÈôÀÏʦÌṩµÄÒ©Æ·ÓÐ500g8%µÄÇâÑõ»¯ÄÆÈÜÒº£¬500g1%µÄÇâÑõ»¯ÄÆÈÜÒº£¬×ãÁ¿µÄÇâÑõ»¯ÄƹÌÌåºÍË®£¬³ýÁËÉÏÊöÅäÖ÷½°¸Í⣬ÇëÄãÔÙÉè¼Æ³öÁ½ÖÖÅäÖ÷½°¸£¨Ð´³öËùÐèÒ©Æ·µÄÃû³Æ¼°ÊýÁ¿£©
ÒÒ£º
£¨6£©ÔÚÉÏÊöËùÉæ¼°µÄ·½°¸ÖÐ×î¼Ñ·½°¸Îª
¿¼µã£ºÒ»¶¨ÈÜÖÊÖÊÁ¿·ÖÊýµÄÈÜÒºµÄÅäÖÆ,³ÆÁ¿Æ÷-ÍÐÅÌÌìƽ
רÌ⣺ÈÜÒº¡¢×ÇÒºÓëÈܽâ¶È
·ÖÎö£º£¨1£©¸ù¾ÝÈÜÖÊÖÊÁ¿µÈÓÚÈÜÒºÖÊÁ¿ºÍÈÜÖÊÖÊÁ¿·ÖÊýµÄ³Ë»ý½øÐзÖÎö£»
£¨2£©¸ù¾ÝʹÓÃÍÐÅÌÌìƽ³ÆÈ¡ÇâÑõ»¯ÄÆÖÊÁ¿µÄ²Ù×÷·½·¨£º×óÎïÓÒÂë¡¢íÀÂëµÄÑ¡Óá¢ÓÎÂëµÄµ÷Õû·ÖÎö½â´ð£»
£¨3£©Èܽâ²Ù×÷³£Óò£Á§°ô½Á°è£¬¼ÓËÙ¹ÌÌåÈܽ⣻
£¨4£©µ¼ÖÂÈÜÒºÖÐÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÊÇ£ºÈÜÖÊÉÙÁË£¨×óÂëÓÒÎï³ÆÁ¿£»ÈÜÖÊÓÐÔÓÖÊ£»ÓÎÂë²»ÔÚÁãλÖþ͵÷½ÚÌìƽƽºâ£©»òÈܼÁ¶àÁË£¨Á¿Ë®Ê±ÑöÊÓ¶ÁÊý£»ÉÕ±»òÊÔ¼ÁÆ¿ÖÐÓÐË®£©£¬¾Ý´Ë·ÖÎö£®
£¨5£©¡¢£¨6£©ÅäÖÆÈÜÒºµÄ·½·¨ºÜ¶à£º¿ÉÖ±½ÓÓÃÈÜÖʺÍË®Å䣻Èç¹ûÓÃËù¸øµÄÈÜÒºÅäʱ£¬ÒªÏÈËãÒ»ËãÈÜÖÊÊÇ·ñ¹»£¬Èç¹û²»¹»¼ÓÈÜÖÊ£¬Ê£ÓàµÄÖÊÁ¿ÓÃË®²¹³ä£®
£¨2£©¸ù¾ÝʹÓÃÍÐÅÌÌìƽ³ÆÈ¡ÇâÑõ»¯ÄÆÖÊÁ¿µÄ²Ù×÷·½·¨£º×óÎïÓÒÂë¡¢íÀÂëµÄÑ¡Óá¢ÓÎÂëµÄµ÷Õû·ÖÎö½â´ð£»
£¨3£©Èܽâ²Ù×÷³£Óò£Á§°ô½Á°è£¬¼ÓËÙ¹ÌÌåÈܽ⣻
£¨4£©µ¼ÖÂÈÜÒºÖÐÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÊÇ£ºÈÜÖÊÉÙÁË£¨×óÂëÓÒÎï³ÆÁ¿£»ÈÜÖÊÓÐÔÓÖÊ£»ÓÎÂë²»ÔÚÁãλÖþ͵÷½ÚÌìƽƽºâ£©»òÈܼÁ¶àÁË£¨Á¿Ë®Ê±ÑöÊÓ¶ÁÊý£»ÉÕ±»òÊÔ¼ÁÆ¿ÖÐÓÐË®£©£¬¾Ý´Ë·ÖÎö£®
£¨5£©¡¢£¨6£©ÅäÖÆÈÜÒºµÄ·½·¨ºÜ¶à£º¿ÉÖ±½ÓÓÃÈÜÖʺÍË®Å䣻Èç¹ûÓÃËù¸øµÄÈÜÒºÅäʱ£¬ÒªÏÈËãÒ»ËãÈÜÖÊÊÇ·ñ¹»£¬Èç¹û²»¹»¼ÓÈÜÖÊ£¬Ê£ÓàµÄÖÊÁ¿ÓÃË®²¹³ä£®
½â´ð£º½â£º£¨1£©ÐèÇâÑõ»¯ÄƹÌÌåÊÇÖÊÁ¿£º1000g¡Á4%=40g£¬
Ë®µÄÖÊÁ¿Îª£º1000g-40g=960g£¬
ÐèҪˮµÄÌå»ý=960g¡Â1g/cm3=960cm3=960mL£®
£¨2£©³ÆÈ¡ÇâÑõ»¯ÄÆʱΪ·ÀÖ¹¸¯Ê´ÌìƽµÄÍÐÅÌ£¬·ÅÔÚÉÕ±ÄÚ¸ù¾Ý¡°×óÎïÓÒÂ롱µÄÔÔò·ÅÔÚ×ó±ßÍÐÅÌÄÚ½øÐгÆÈ¡£¬ÇâÑõ»¯ÄƹÌÌåÓëÉÕ±µÄ×ÜÖÊÁ¿Îª40g+23.1g=63.1g£»ËùÒÔÑ¡ÔñíÀÂëʱӦѡ£º50gºÍ10gíÀÂë¸÷Ò»¸ö£»ÓÎÂëÓ¦Òƶ¯ÖÁ3.1g´¦£¬ÓÎÂë×ó²àʾÊýΪÓÎÂëÖÊÁ¿£¬Í¼ÖÐA±íʾ2.9g¡¢B±íʾ3.1g¡¢C±íʾ3.0g£»
£¨3£©Èܽâ¹ý³ÌÖÐÓÃÓÚ½Á°èÒÔ¼Ó¿ìÎïÖÊÈܽâµÄÒÇÆ÷Ϊ²£Á§°ô£»
£¨4£©µ¼ÖÂÈÜÒºÖÐÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÓÐÁ½ÖÖ£ºÈÜÖÊÉÙ»òÈܼÁ¶à£¬ÈÜÖÊÉÙÁË£¨×óÂëÓÒÎï³ÆÁ¿£»ÈÜÖÊÓÐÔÓÖÊ£»ÓÎÂë²»ÔÚÁãλÖþ͵÷½ÚÌìƽƽºâ£©»òÈܼÁ¶àÁË£¨Á¿Ë®Ê±ÑöÊÓ¶ÁÊý£»ÉÕ±»òÊÔ¼ÁÆ¿ÖÐÓÐË®£©£»
£¨5£©500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒºÖк¬ÈÜÖÊ£º500 g¡Á8%=40g£¬ÐèË®£º1000g-500g=500g£¬ËùÒÔ¿ÉÒÔÓÃ500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒººÍ500gË®À´ÅäÖÆ£®
400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒºÖк¬ÈÜÖÊ£º400 g¡Á1%=40g£¬ÐèË®£º1000g-400g=600g£¬ËùÒÔ¿ÉÒÔÓÃ400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒººÍ600gË®À´ÅäÖÆ£®
£¨6£©²Ù×÷ÒÒ£¬Ö»Ðè³ÆÁ¿500 gË®µÄÖÊÁ¿£¬¶ø²Ù×÷±ûÐèÒª³ÆÁ¿ÇâÑõ»¯ÄÆÈÜÒºµÄÖÊÁ¿ºÍË®µÄÖÊÁ¿£®
¹Ê´ð°¸Îª£º£¨1£©40£»960£»
£¨2£©×ó£»
B£»
£¨3£©²£Á§°ô£»
£¨4£©³ÆÁ¿Ê±ÇâÑõ»¯ÄƺÍíÀÂë·Å·´ÁË£¬×óÂëÓÒÎºÏÀí¾ù¿É£©£»
£¨5£©500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒººÍ500gË®À´ÅäÖÆ£»400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒººÍ600gË®À´ÅäÖÆ£»
£¨6£©ÒÒ£»²Ù×÷¼ò±ã£¬¼õСÎó²î£®
Ë®µÄÖÊÁ¿Îª£º1000g-40g=960g£¬
ÐèҪˮµÄÌå»ý=960g¡Â1g/cm3=960cm3=960mL£®
£¨2£©³ÆÈ¡ÇâÑõ»¯ÄÆʱΪ·ÀÖ¹¸¯Ê´ÌìƽµÄÍÐÅÌ£¬·ÅÔÚÉÕ±ÄÚ¸ù¾Ý¡°×óÎïÓÒÂ롱µÄÔÔò·ÅÔÚ×ó±ßÍÐÅÌÄÚ½øÐгÆÈ¡£¬ÇâÑõ»¯ÄƹÌÌåÓëÉÕ±µÄ×ÜÖÊÁ¿Îª40g+23.1g=63.1g£»ËùÒÔÑ¡ÔñíÀÂëʱӦѡ£º50gºÍ10gíÀÂë¸÷Ò»¸ö£»ÓÎÂëÓ¦Òƶ¯ÖÁ3.1g´¦£¬ÓÎÂë×ó²àʾÊýΪÓÎÂëÖÊÁ¿£¬Í¼ÖÐA±íʾ2.9g¡¢B±íʾ3.1g¡¢C±íʾ3.0g£»
£¨3£©Èܽâ¹ý³ÌÖÐÓÃÓÚ½Á°èÒÔ¼Ó¿ìÎïÖÊÈܽâµÄÒÇÆ÷Ϊ²£Á§°ô£»
£¨4£©µ¼ÖÂÈÜÒºÖÐÇâÑõ»¯ÄÆÖÊÁ¿·ÖÊýСÓÚ4%µÄ¿ÉÄÜÔÒòÓÐÁ½ÖÖ£ºÈÜÖÊÉÙ»òÈܼÁ¶à£¬ÈÜÖÊÉÙÁË£¨×óÂëÓÒÎï³ÆÁ¿£»ÈÜÖÊÓÐÔÓÖÊ£»ÓÎÂë²»ÔÚÁãλÖþ͵÷½ÚÌìƽƽºâ£©»òÈܼÁ¶àÁË£¨Á¿Ë®Ê±ÑöÊÓ¶ÁÊý£»ÉÕ±»òÊÔ¼ÁÆ¿ÖÐÓÐË®£©£»
£¨5£©500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒºÖк¬ÈÜÖÊ£º500 g¡Á8%=40g£¬ÐèË®£º1000g-500g=500g£¬ËùÒÔ¿ÉÒÔÓÃ500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒººÍ500gË®À´ÅäÖÆ£®
400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒºÖк¬ÈÜÖÊ£º400 g¡Á1%=40g£¬ÐèË®£º1000g-400g=600g£¬ËùÒÔ¿ÉÒÔÓÃ400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒººÍ600gË®À´ÅäÖÆ£®
£¨6£©²Ù×÷ÒÒ£¬Ö»Ðè³ÆÁ¿500 gË®µÄÖÊÁ¿£¬¶ø²Ù×÷±ûÐèÒª³ÆÁ¿ÇâÑõ»¯ÄÆÈÜÒºµÄÖÊÁ¿ºÍË®µÄÖÊÁ¿£®
¹Ê´ð°¸Îª£º£¨1£©40£»960£»
£¨2£©×ó£»
íÀÂë/g | 100 | 50 | 20 | 20 | 10 | 5 |
´ò¡°¡Ì¡±±íʾѡÓà | ¡Ì | ¡Ì |
£¨3£©²£Á§°ô£»
£¨4£©³ÆÁ¿Ê±ÇâÑõ»¯ÄƺÍíÀÂë·Å·´ÁË£¬×óÂëÓÒÎºÏÀí¾ù¿É£©£»
£¨5£©500 g 8%µÄÇâÑõ»¯ÄÆÈÜÒººÍ500gË®À´ÅäÖÆ£»400 g 1%µÄÇâÑõ»¯ÄÆÈÜÒººÍ600gË®À´ÅäÖÆ£»
£¨6£©ÒÒ£»²Ù×÷¼ò±ã£¬¼õСÎó²î£®
µãÆÀ£º±¾Ìâ½ÏϸÖµĿ¼²éÁËÌìƽµÄʹÓúÍÈÜÒºÅäÖƵÄÎó²î·ÖÎöµÈ֪ʶ£¬ÄܽáºÏÈÜÖʵÄÖÊÁ¿·ÖÊýÕýÈ··ÖÎö´íÎó²Ù×÷ÒýÆðµÄºó¹ûÊǽâ´ðµÄ¹Ø¼ü£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÏÂÁв»ÄÜÓɵ¥ÖÊÔÚÑõÆøÖÐȼÉÕ¶øµÃµ½µÄÎïÖÊÊÇ£¨¡¡¡¡£©
A¡¢P2O5 |
B¡¢Fe2O3 |
C¡¢CO2 |
D¡¢SO2 |
ÏÂÁз´Ó¦ÖÐÊôÓÚÑõ»¯·´Ó¦£¬µ«²»ÊôÓÚ»¯ºÏ·´Ó¦µÄÊÇ£¨¡¡¡¡£©
A¡¢¸ßÃÌËá¼Ø
| ||
B¡¢Áò+ÑõÆø
| ||
C¡¢ÇâÆø+Ñõ
| ||
D¡¢¾Æ¾«+ÑõÆøË®
|
ÏÂÁб仯ÊÇ»¯Ñ§±ä»¯µÄÊÇ£¨¡¡¡¡£©
A¡¢¿ÕÆøÒº»¯ | B¡¢Ã¾´øȼÉÕ |
C¡¢Ë®½á±ù | D¡¢Ä¾²ÄÖƳÉ×À×Ó |