{"id":609,"date":"2015-03-08T12:02:20","date_gmt":"2015-03-08T12:02:20","guid":{"rendered":"http:\/\/paksc.org\/pk\/?p=609"},"modified":"2015-03-08T12:02:20","modified_gmt":"2015-03-08T12:02:20","slug":"how-to-find-out-airs-mass","status":"publish","type":"post","link":"https:\/\/paksc.org\/pk\/science-experiments\/chemistry-experiments\/how-to-find-out-airs-mass\/","title":{"rendered":"How to find out Air\u2019s mass"},"content":{"rendered":"

How to find out Air\u2019s mass Level Elementary<\/h3>\n

Experiment Air\u2019s mass <\/strong><\/p>\n

Concept <\/strong><\/p>\n

The air has mass.Let's measure the air\u2019s mass with a spray can and PET bottle.<\/p>\n

Materials <\/strong><\/p>\n

used spray can,\u00a0 PET bottle (500ml or 1000ml), and air pump, vinyl\u00a0 nozzle, adhesive tape,\u00a0 pin for the ball, electronic balance or balance, bond, and water tank<\/p>\n

Procedure <\/strong><\/p>\n

    \n
  1. Confirm that there is no gas in the spray can.<\/li>\n
  2. The nozzle is attached to the spray can by the bond.<\/li>\n
  3. The adhesive tape is rolled in the pin for the ball.<\/li>\n
  4. The pin is inserted to another side of nozzle tightly.<\/li>\n
  5. The air is put into the spray can enough by the air pump. The spray button is pushed during pumping.<\/li>\n
  6. Measure the mass of the spray can by the balance.<\/li>\n
  7. Water is put in the water tank Water is put in the PET bottle, and it is set up inverted in the water tank.<\/li>\n
  8. The air 1000ml is taken from the spray can by replacing the water of the PET bottle.<\/li>\n
  9. Measure the mass of the spray can by the balance again.<\/li>\n
  10. The mass of the air 1000ml is calculated.<\/li>\n<\/ol>\n


    \nWorking <\/strong><\/p>\n

    The following are one example of the measurement result. The mass of the spray can with air: 117.6g The mass of the can after taking out air1000ml : 116.4g As a result, the mass of air 1000ml (1dm ):1.2g\u00a0\u00a0\u00a0 The mass of air 1dm\u00a0 in 0\u2103\u00a0 1atm is 1.293g.<\/p>\n

    Question <\/strong><\/p>\n

    Let's calculate the mass of air in the classroom.<\/p>\n

    The mass of the air 1dm3 is assumed to be 1.2g, and the height, width, and length of the classroom are assumed to be 3.5m, 7m, 10m each.<\/p>\n

    The volume of the classroom=3.5 m \u00d77m\u00d7 10m=245m3 (meter cube)<\/strong><\/p>\n

    1m 3=1000 dm3
    \nThe mass of air in the classroom=1.2 g\u00d71000\u00d7245=294000g =294kg<\/p>\n\n\n\n\n
    \"\"<\/a><\/td>\n<\/tr>\n
    Air\u2019s mass Experiment<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
    \"\"<\/a><\/td>\n<\/tr>\n
    Air\u2019s mass experiment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

    How to find out Air\u2019s mass Level Elementary Experiment Air\u2019s mass Concept The air has mass.Let’s measure the air\u2019s mass with a spray can and PET bottle. Materials used spray can,\u00a0 PET bottle (500ml or 1000ml), and air pump, vinyl\u00a0 nozzle, adhesive tape,\u00a0 pin for the ball, electronic balance or balance, bond, and water tank…<\/p>\n","protected":false},"author":9,"featured_media":610,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[33],"tags":[17],"class_list":["post-609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chemistry-experiments","tag-science-club-activities"],"yoast_head":"\nHow to find out Air\u2019s mass -<\/title>\n<meta name=\"description\" content=\"How to find out Air\u2019s mass How to find 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