Zinc And Iodine Lab

ZINC AND IODINE LAB JOURNAL

Physical Description:

Before:

• Zinc (Zn): Small bits of silver-coloured metal
• Iodine (I): Small pieces of sparkling dark grey substance
• Water (H2O): Clear liquid

After:

• (l): Clear liquid
• (s): small bits of silver-coloured metal at bottom of flask (probably excess Zn)

Quantitative Measurements:

Before:

• Zn: 2.01 g
• I: 1.97 g
• Total: 3.98 g 

After:

• ZnI2: 2.69 g
• Zn: 1.45 g
• Total: 4.14 g

Particle Diagram:

Chemical Symbols/Equation:

Before:

4Zn + 2I2

After:

2ZnI2

Total:
 4Zn + 2I2 ----> 2ZnI2

Description:

In this experiment we measured  and mixed zinc and iodine together in order to create a new substance, zinc iodide. Our measurements, when converted into moles, demonstrated the ratio of zinc to iodine before the reaction, and after, in our new substance. With this ratio we were able to create an accurate particle diagram and equation that correctly shows our new substance. The particle diagram shows the bonds between atoms before and after the reaction.