hydrate-lab

^^ Here is my lab up above! ^^

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In this lab we weighed and heated different hydrates to figure out how much water was lost. As you can see down below this was our set up for both hydrates that we used.

Here is us weighing the crucible and lid by its self because we needed to know how much we had to subtract from the number we received after heating.

This is how we measured the hydrates. (Hydrate A below)

The hydrate was then put into the crucible and heated for the first time. It was heating for 5 minutes until wee took it off to cool down for 10 minutes. After it was done cooling down we measured it and then stuck it back to be heated for a final time. We did this twice to make sure that all the possible water was out.

Hydrate C did not have much of an ‘explosion’ though it did change from blue to white and they all stuck together after the first heating. Here is what Hydrate C looked like after the first heating:

For Hydrate A, it had more of an ‘explosion’ while heating as the contents flung to the sides of the walls of the crucible. Here is what Hydrate A looked like after the second heating:

As you can tell the overall mass of before and after did change though not by a drastic amount which makes sense because water was the only thing that was diminished. (Hydrate A below)

That was our Hydrate Lab. We collected all of our data and then cleaned up our station!

 

 

 

Experiment #1

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When the piece of magnesium ribbon hit the flame (oxygen) created by the bunsen burner it created a bright light burner just until the magnesium burned into an ashy substance. This was a synthesis reaction and created magnesium oxide!

Experiment #2

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When the butane lighter was turned on it created a blue flame and it also reacted with oxygen to create a combustion reaction!

Experiment #3

Once the KI crystals were added to the 5.0ml of hydrogen peroxide as a catalyst the substance changed into a bright yellow foam and it exploded slowly to the top of the graduated cylinder. this was a decomposition reaction.

Experiment #4

The image on the top is what the small coper BB looked like before the few drops of 0.1M Silver nitrate solution was added. The picture at the bottom is what it looked like after 10 min and there was small silver crystals that were forming around the ball. The liquid also turned a bluey colour. This reaction was a single replacement.

Experiment #5

The first image is what the 0.1M Potassium iodide and 0.1M Lead (II) nitrate look like separately in a spot plate. Then once we added them together (as seen in the second image) they created a bright yellow colour which was also a second replacement reaction!

Experiment #6

In this one we had to discover which liquid was the acid and which was the base using litmus paper. In the first picture we see that the litmus paper turns blue and in the second it turns red which indicates that one is acidic and the other is a base! We then had to balance the two liquids to find a perfect balance of acid and base which then turned (as seen in the third picture) the litmus paper red and blue (relatively) equally! This was an acid base neutralization!