5.7 g of bleaching powder was suspended in 500 ml of water. 25 ml of this suspension on treatment with KI and HCl liberated iodine which reacted with 24.35 ml of N/10Na2S2O3. Calculate % of available Cl2 in bleaching powder
Answers
Answer:
30.33% of Cl2 is available in bleaching powder.
Explanation:
Given data:
Weight of bleaching powder = 5.7 grams
It was suspended in 500 ml of water.
25 ml of this suspension on treatment with KI and HCl liberated iodine.
It was reacted with 24.35 ml of N/10 Na2S2O3.
To Calculate :
% of available Cl2 in bleaching powder
Solution
We have to find equivalent for Na2S2O3
It is given by
= 24.35*1/10
= 2.435
Now the same equivalent will be there for potassium iodide ( KI).
Iodone I2 will be given out in the reaction.
Now we have to find equivalent for chlorine.
For this we've to take volume as 500ml
This will be given by 2.435*20 = 48.7
The equivalent of chlorine will be equal to the amount of available chlorine in bleaching powder.
Now this will be given by
48.7/1000*35.5/5.7*100
48.7/355/57
=30.33%
Hence, 30.33% of Cl2 is available in bleaching powder.
Answer:
30.33% of Cl2 is available in bleaching powder.
Explanation:
Explanation:
Given data:
Weight of bleaching powder = 5.7 grams
It was suspended in 500 ml of water.
25 ml of this suspension on treatment with KI and HCl liberated iodine.
It was reacted with 24.35 ml of N/10 Na2S2O3.
To Calculate :
% of available Cl2 in bleaching powder
Solution
We have to find equivalent for Na2S2O3
It is given by
= 24.35*1/10
= 2.435
Now the same equivalent will be there for potassium iodide ( KI).
Iodone I2 will be given out in the reaction.
Now we have to find equivalent for chlorine.
For this we've to take volume as 500ml
This will be given by 2.435*20 = 48.7
The equivalent of chlorine will be equal to the amount of available chlorine in bleaching powder.
Now this will be given by
48.7/1000*35.5/5.7*100
48.7/355/57
=30.33%
Hence, 30.33% of Cl2 is available in bleaching powder.