Week 1 Of Crystal Growing
How many mL of distilled water was used in this week?
50 mL.
How many grams of aluminum potassium sulfate dodecahydrate was used this week?
10 grams.
What happened to the crystal during this week?
The crystal began to grow.
What shape was formed in this week of growing the crystal?
Why did the crystal continue to get cloudy throughout the 4th week?
This is due to impurities in the crystal solution.
How many mL of distilled water was added to the solution?
37mL.
Where were the seed crystals grown?
In a petri dish.
What began to grow on the thread of the crystal?
Mini crystals.
What shape was desired?
A rhombus with sharp corners.
Why did the temperature have to be precisely 60-80 degrees?
This is due to the fact that the solution should not be reaching a boiling point. Also, referring to the solubility chart helped determine the appropriate temperature needed for a saturated solution.
How would the saturation of the solution be described?
Oversaturated.
How many crystal seeds were chosen to grow in the petri dish.
3-6
The bottom of the beaker.
How many times was the solution filtered this week?
Once.
Why is it important for the container in which the crystal is growing to be covered?
Were crystal seeds formed? If so, what did it look like?
Yes, crystal seeds were formed and they were cloudy.
What was the shape of the crystal seed chosen?
Diamond shapped.
How many times was the solution filtered?
twice.
A cloudy solid.
What can cause a crystal to stop growing?
The crystal can often shrink due to excessive agitation of the solution, such as stirring. This can break apart or damage the growing crystal and prevent the growth or even potentially cause the crystal to shrink.
Were the seed crystals formed good enough for growing a crystal?
No.
At what temperature were the crystals at the bottom of the beaker dissolved?
70 degrees.
Why was the solution filtered in the first place?
Due to cloudiness of the crystals
Which solution did the biggest crystal come from?
Solution 1.
How to clean a crystal?
One can “clean” the crystal by simply rinsing the crystal with a suitable solvent that can remove surface impurities.