Need Help with Hypothesis

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Need Help with Hypothesis

Postby rstudent » Wed Nov 28, 2012 10:53 pm

I am planning to do the "Make a Colorimeter to Measure the Concentration of Blue Dye in Various Liquids" as a science fair experiment.
My question is about forming a hypothesis for this experiment as I am having trouble formulating one for this experiment. I was thinking about framing it around the linear relationship between the absorbance of light and concentration of blue dye.
Any suggestions would be greatly appreciated.
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Re: Need Help with Hypothesis

Postby edneu3 » Thu Nov 29, 2012 10:06 am

Hi rstudent,

This is a pretty detailed, and very interesting experiment. I think you will have fun with it.

If I was doing this experiment, I believe I would establish a hypothesis something like this, "The concentration of blue dye in a solution can be determined by the use of a colorimeter"

Then you would go about performing the prescribed procedure and prove that you can do this.

I hope this helps.

Good luck and...

Have fun with science!
Ed Neu
Buffalo, MN
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Re: Need Help with Hypothesis

Postby rstudent » Thu Nov 29, 2012 9:08 pm

Thank you very much for your input, it cleared up some of the confusion I had and helped a lot!
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Project Question: Analyzing Milk protein concentrations
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Re: Need Help with Hypothesis

Postby Chemshavon » Sun Jan 19, 2014 12:02 pm

Hi rstudent,
Can you tell me what Blue Dye you used for your project? I'm doing the same one and having a hard time figuring out which dye I'm supposed to be using for the solutions.
Thank you :)
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Project Question: Make a Colorimeter to measure the concentration of blue dyes in various liquids
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Re: Need Help with Hypothesis

Postby Terik Daly » Fri Jan 24, 2014 4:43 pm

Hi Chemshavon,

This project uses the dye called FD&C Blue #1. Take a look at the back of boxes of food coloring to find one that lists FD&C Blue #1 (or just Blue #1) as an ingredient.
All the best,
Terik
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