It's time for the next round of my little chemistry quiz. What could be more fun than activating your brain and at the same time having the opportunity to win up to 6 steem. :-)
Rules - what are the requirements to win the prize?
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You have to upvote this article with at least 20 % of your voting power (no 1 % votes please :).
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Winner is the person who is the first one to post the correct solution (correct number and correct unit). The prize for the correct answer are 5 steem. I will send it to the winner immediately after I received the rewards for this article.
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If the winner had also resteemed my article, he will receive one additional steem (altogether (5 + 1) steem = 6 steem).
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If nobody finds the solution until Friday, April 21th, 2017 at 10 pm (German time!) the prize (5 steem) will be added to the next competition.
Nitrogen in a discharge tube:
Von Alchemist-hp (talk) (www.pse-mendelejew.de) - Eigenes Werk, FAL, https://commons.wikimedia.org/w/index.php?curid=10942390
Challenge to solve:
Assuming that in the room air of the still empty bedroom of a new build house there are exactly 7.79215 ∙ 1026 N2 molecules. The floor area of the room is quadratic with an edge length of l = 4.00 m.
Given as help:
- The mass percentage of N2 in the air amounts to 75.518 %.
- One single N atom has a mass of 14.007 u.
- 1 g = 6.022 ∙ 1023 u.
- The density of the room air is assumed to be ρ = 1.2 kg/m3.
Question:
What is the height of the bedroom (from the floor to the ceiling) in m?
Calculations are required. :)