I have to prepare my chemical report about CO2 molecular mass. I searched and got a sample report from internet.
I read it and I can't understand this.
Weight of flask covered with glass cover = flask+glass cover + air in it
Weight of flask uncovered with the cover+cover = flask+glass cover
Why the report says there is difference? I thought there is no difference..
Make a pin hole to covered flask, then does its weight suddenly decrease?
And I also want to know how buoyancy works in that case.
I'm not good at english so I think I didn't write what I exactly want to ask. But if you answer me, I'll be very happy. :)