The Kingdom of Chemithia- Part 12
As you prepare for the trip to the Oganesson Traps, the king tells you to prepare some explosives. You feel nitroglycerine ( C X 3 H X 5 N X 3 O X 9 ) would be most suitable for the purpose. The volume strength term can be used for nitroglycerine also, and it is defined as the volume of gases evolved at 1 atmosphere and 273 K as per the following reaction:
4 C X 3 H X 5 N X 3 O X 9 ( a q ) 6 N X 2 ( g ) + 1 2 C O X 2 ( g ) + O X 2 ( g ) + 1 0 H X 2 O ( l )
The density of this is 1.1 gm/ml. The other royal chemists recommend that you prepare nitroglycerine with volume strength of 212.8 V. Then, which of the following about such a solution is true?
- It is 2 M nitroglycerine solution.
- It is 454 gram/litre nitroglycerine solution.
- It is 41.27% (w/v) nitroglycerine solution.
- It is 41.27% (w/w) nitroglycerine solution.
Input your answer as the mass number of the element whose atomic number is the sum of the correct options. For example: If the answer is 1 and 2, the sum is 3. 3 is Lithium, with mass number 7. So input 7.
This question is part of my set Tales of Chemithia ! Give it a try; it's a story woven together by Chemistry problems!
The answer is 14.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 and 4 can be approximated in an okayish way but realise If your solution of nitroglycerine is 2M, then 450gms of nitroglycerine exist in 1L of solution Making it a 450gm/litre solution and not a 454 one An error of 4gm/litre is quite big and not at all negligible