Photochemistry Ammonium Oxalate and Iodide

by | Aug 15, 2022 | Chemistry, Experiments

Introduction

In this experiment(Photochemistry Ammonium Oxalate and Iodide), we will be determining whether the outcomes of photochemical reactions depend on the source of light or not. While determining the effect of different light sources and colours on photochemical reactions, we will also find the effect of iodide and ammonium oxalate on it.

Aim

To determine the effect of iodide and ammonium oxalate on different light sources while determining its effect on the outcome of photochemical reaction.

Theory

1. We hypothesised that each solution would give a different outcome.

2. We also hypothesised that neon would affect the iodide and ammonium oxalate most. On the other hand, fluorescent light bulbs will affect the iodide and ammonium oxalate least.

The formula for Ammonium Oxalate

Ammonium Oxalate

Requirements

1. Liquified ammonium oxalate crystals

2. 6 Test tubes

3. A medicine dropper

4. Iodine

5. Notebook

Procedure

Step 1: Take liquified ammonium crystals and prepare a 1-mole solution of ammonium oxalate.

Step 2: Take six test tubes and add 2 ml of ammonium oxalate solution to each of the test tubes.

Step 3: Now, add 10 drops of tincture of iodine using a medicine dropper in each of the solutions of ammonium oxalate solution.

Step 4: Next, cover the mouth of each of the test tubes.

Step 5: Expose five of the solutions to different light sources, for instance, halogen, incandescent light source, fluorescent light source, neon light, and mercury.

Step 6: Expose the remaining one of the solutions to the darkness.

Step 7: Leave the solution untouched for 12 hours.

Step 8: Compare each of the solutions.

Step 9: Record your observations.

Observations

1. We observed that the neon light, the brightest of all, dissolved most of the iodide from the solution.

2. If we talk about ammonium oxalate, then after keeping it for 12 hours, it went from a deep orange colour solution to a clear solution.

3. The fluorescent light bulb, everyday light bulb, and halogen all showed the same result.

4. On the other hand, mercury was the least effective one and changed the deep orange colour of ammonium oxalate to a light orange colour.

Result

1. The dependent light variables reduced the iodide from the solution of ammonium oxalate in each of my solutions.

2. In one case, the orange colour of the solution got completely dissolved, while in another case, the orange colour of the solution got reduced a little.

Precautions

1. Handle the chemical with care.

2. Do not exceed the timing once 12 hours are attended.

Conclusion

In this experiment, we determined how the different light sources get affected by the ammonium oxalate and iodide while we were to determine the effect of the light source on the outcome of the photochemical reaction.

Viva Questions With Answers

Q.1 What was the aim of your experiment?

ANS. We aimed to determine the effect of iodide and ammonium oxalate on different light sources while determining its effect on the outcome of photochemical reactions.

Q.2 Which light dissolved most of the iodide?

ANS. Neon light dissolved most of the iodide.

Q.3 Which light changes the deep orange color of ammonium oxalate solution to a clear substance?

ANS. Everyday light, halogen, and fluorescent light changed the deep orange color of ammonium oxalate solution to a clear substance.

Q.4 Which light changed the deep orange color of ammonium oxalate to a light orange color?

ANS. Mercury was the least effective one in changing the color of the deep orange color of ammonium oxalate to a light orange color.

 

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