no handwriting please handwriting no rate so please type it Every year people ar
ID: 525665 • Letter: N
Question
no handwriting please handwriting no rate so please type it
Every year people are injured by mixing the common cleaning compounds bleach(sodium hypochlorite, NaOCl) with ammonia(NH3). The overall reaction is: NH + NaOCl NHCl + NaOH . NH2Cl is called monochloramine and when it gets into your lungs it can attack mucous membranes, irritating the lungs and reacting with your hemoglobin to make those cells incapable of carrying oxygen – all in all , a bad day.
A. What is the oxidation state (not charge!) of the nitrogen(N) atom in ammonia(NH3)? Hint – what kinds of ions does hydrogen like to make?
B. What is the oxidation state of the chlorine atom(Cl) in sodium hypochlorite NaOCl?
Hint – this is an unusual oxidation for state for chlorine.
You know that chlorine likes to make chloride ions(Cl–) so you may be surprised by your answer. Use your knowledge that sodium likes to make +1 ions and oxygen likes to make -2 ions to calculate the oxidation state of chlorine.
C. Because the oxidation states of nitrogen and chlorine change, explain (or better yet, draw) how you could make a galvanic cell from ammonia and bleach?
Explanation / Answer
1- oxidation no of N in ammonia -3. Rule- oxidation number of electropositive elements are considered as positive while negative for electronegative elements.so
H= +1 3(1)+1(N)=0 then N=-3
2- In Naocl Na =+1. O= -2 most electron negative
1(1) +1(-2) + Cl = 0 then oxidation number of Cl is +1
3- NH3. +. Naocl ----- NH2cl + NaOH
-3. +1. -1. -1
In this case nitrogen oxidised and chlorine reduced so it is an example of redox reaction.
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