View Experiment - Experimentium

VIDEO LINKS:

Lab Experiments (Write protocols based on the videos then complete your protocols as you perform experiments in class):

Data analysis and calculations (Use these if you need help with your data and calculations)

Experimental Protocol

(Analysis) Write out the protocol for each part of the experiment. (It can be written in sequential steps. Complete sentences are not necessary.) This is the protocol you follow, so be detailed.

Chemical Table

(Representation) Prepare your chemical table including the materials you use in the experiment. Here is a general template that you may use.

Chemical Name	Chemical Formula	Molar Mass (g/mol)	Hazards	Reference	PPE
Sodium Chloride	NaCl	58.5	Skin irritation	https://fscimage.fishersci.com/msds/21105.htm

Equipment Table

(Analysis) Identify the equipment (type AND size) needed for the experiment and include the name and an image (picture) of each. Be sure to describe the equipment, how to use it, and why it is suitable for this use.

Equipment Name	Equipment Picture	Intended Purpose

Data Collection

(Acquiring competencies) Following your detailed protocol, perform all the experiments. Record your observations and take pictures of your key steps in the process. Your observations and images need to be incorporated in your data section and this section should be as detailed as possible as you will use this information to complete your discussion.

Data Processing

(Representation) Write the balanced chemical reaction for CaCl₂ dissolving in water.
(Manipulation) Calculate the concentration of CaCl₂in solution.
(Manipulation) Calculate the concentration of Ca²⁺ and Cl^- in solution.
(Manipulation) Calculate the concentration of sodium alginate in solution.
(Assumptions) Fill in the following table using the data and observations from your experiment:

Assumptions made	Testing the assumption	If assumptions are wrong
The distilled water is pure	Evaporate it and check for residue	The density would change depending on the density of the contaminant.
Calcium alginate is insoluble in water	Check the solubility
		The mass of recovered solid is dramatically less then expected

Discussion

Write a minimum one-page (12 font, single spaced) discussion on the experiment conducted this week. The assignment will be graded on completeness, clarity of the explanations and the meaningful integration of the collected and calculated data. Correct grammar and appropriate format for the chemical formulae and chemical reactions is expected. You may use the outline included at the end of this document on how to build your essay to address each category.

(Existing knowledge, research, and views) Define spherification.
(Existing knowledge, research, and views) Identify the uses of sodium alginate in daily life. Give at least 2 examples.
(Analysis) Describe at least two similarities in the sodium alginate and calcium chloride solutions.
(Analysis) Describe at least two differences in the sodium alginate and calcium chloride solutions.
(Analysis) Describe at least two observations when popping your spheres over time.
(Existing knowledge, research, and views) Identify the cause of formation of the spheres.
(Existing knowledge, research, and views) Explain the cause of hardening of the spheres.
(Analysis) Identify what determines the shape of the spheres.
(Analysis) Predict the expected outcome if the spheres remain in the air.
(Analysis) Describe the process of creating shapes other than spheres.
(Analysis) Describe the process for creating alternate shapes intentionally.
(Analysis) Describe the outcome if you added the calcium chloride solution to the sodium alginate solution.
(Experimental design) Propose other experiments you would like to conduct on the sodium alginate system.

Recommended Discussion Outline:

The concepts I used in this experiment were… The most important aspect of this experiment was… The purpose of the experiment was (Hint: it was not to make gel spheres) … By performing this experiment, I learned…

Spherification