Question

IODOMETRIC TITRATION P Matching: Choose the best answer (10 points) 1. The water used to prepare the thiosulfate solution must be 2. E is added to the thiosulfate solution to bring up pH value to 9. 3. The thiosulfate solution must be store in 4. A is added to the 10; mixture to make it slightly acidic. 5. Must the above solution me be titrated immediately? B is the primary standard 7. is the mole ratio for the reaction of KIO, and Na $20, 8. method is used. 9. is the titrant. 10. ions enhance iodine's solubility. A. HCl B. KIO3 D. Iodide ion C. Na,s,º, E. Na,CO, G. Yes F. Iodate ion H. No I. 1:6 J. 2:1 K. 6:1 L. 1:2 M. Iodine titration 0. Cool N. Iodometric titration P. Boiled R. A plastic bottle Q. A brown bottle

Answer 1

1. Whenever this reaction happens it tends to absorb energy from the surroundings therefore we need BOILED water to make this reaction happen.

2. Thiosulfate solution is acidic in nature therefore to increase the pH which means to turn it into a basic solution we need a base which is Na2CO3 here.

3.thiosulphate solution does not react with anything in presence of light therefore it can be stored in PLASTIC BOTTLE.

4. To make a solution slightly acidic we need HCl

We only answer a single question at a time but if it has some parts then we try to to solve the first four subparts. Kindly repost the left out parts.

I hope you understand the concept and kindly provide us with your feedback.