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Chemistry question Anyone know how solve it?

Names would be helpful.

 

K4Fe(CN) + KMnO4 + H2SO4= ???

 

Thankx

 Sep 3, 2014

Best Answer 

 #2
avatar+330 
+19

The cyanide needs increased to 6 molecules. (It is not “poisonous” enough to balance the equation).

 

$$\underbrace {\ 10K_4Fe(CN)_6 } _ {Potassium ferrocyanide }\ +\underbrace{122KMnO_4}_{Potassium\ permanganate}\ +\ \ \underbrace{199H_2SO_4}_{Sulphuric\ acid}\\\\
\Rightarrow \ \underbrace{162KHSO_4}_{Potassium\ bisulphate}\ +\ \ \underbrace {5Fe_2(SO_4)_3}_{ferric \ sulphate}\ \ \ +\ \underbrace {122MnSO_4}_{Manganese(II) sulphate}\ +\ \ \underbrace {60HNO_3}_{Nitric\ acid}\ \\\\
\ +\ \underbrace {60CO_2}_{Carbon\ dioxide}\ +\ \ \underbrace {188H_2O}_{water} \\$$

 

~~D~~

 Sep 3, 2014
 #1
avatar+4472 
+5

It is a pretty tough one to balance. Here is a helpful website:
http://www.chemteam.info/Redox/Redox-FourEquations-prob4-answer.html 

 Sep 3, 2014
 #2
avatar+330 
+19
Best Answer

The cyanide needs increased to 6 molecules. (It is not “poisonous” enough to balance the equation).

 

$$\underbrace {\ 10K_4Fe(CN)_6 } _ {Potassium ferrocyanide }\ +\underbrace{122KMnO_4}_{Potassium\ permanganate}\ +\ \ \underbrace{199H_2SO_4}_{Sulphuric\ acid}\\\\
\Rightarrow \ \underbrace{162KHSO_4}_{Potassium\ bisulphate}\ +\ \ \underbrace {5Fe_2(SO_4)_3}_{ferric \ sulphate}\ \ \ +\ \underbrace {122MnSO_4}_{Manganese(II) sulphate}\ +\ \ \underbrace {60HNO_3}_{Nitric\ acid}\ \\\\
\ +\ \underbrace {60CO_2}_{Carbon\ dioxide}\ +\ \ \underbrace {188H_2O}_{water} \\$$

 

~~D~~

DavidQD Sep 3, 2014
 #3
avatar+4472 
+8

Cool presentation, David! I like the labels, too! 

 Sep 3, 2014
 #4
avatar+330 
+8

Thank You Aziz. The inspiration comes from studying Heureka’s works of art.

 Sep 3, 2014
 #5
avatar+1630 
+10

This is a cool work of art. So is the humour.

 Sep 3, 2014
 #6
avatar+101424 
+3

Ah, trying to slip some cyanide into the forum, are you DavidQD???   Well, you won't get rid of us that easily.........we're too crafty to fall for such a ruse....!!!!

 

{ BTW.....an impressive dispaly of LaTex !!!! }

 

 

 Sep 3, 2014
 #7
avatar+330 
+5

Thank you CPhill. How many imperial minims in a minimum daily requirement of CN?

 Sep 3, 2014
 #8
avatar+101769 
+5

I am impressed too !!!!

Looks like you have quite a fan club David.    

(I found these Chris, you just leave them lying around everywhere.  Finders keepers! )

 Sep 3, 2014
 #9
avatar+101769 
0

Ginger your post is very colourful and arty, a little French in origin perhaps?

Your grand total of 2 points looks a little pathetic so I will more than double your points for you.

It is not often that one of my thumbs can have such a dramatic effect.

But, this is the magical land of Camelot, and I am the Lady of the Land.  

 Sep 3, 2014

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