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Re: Experimental Design B/C

Posted: September 6th, 2018, 8:26 pm
by TheChiScientist
Correct! Your turn.

Re: Experimental Design B/C

Posted: September 9th, 2018, 2:27 pm
by dxu46
When is it appropriate to use a line graph over another type of graph?

Re: Experimental Design B/C

Posted: September 9th, 2018, 7:29 pm
by UTF-8 U+6211 U+662F
dxu46 wrote:When is it appropriate to use a line graph over another type of graph?
When both variables are quantative, and the independent variable is continuous, with the dependent variable as a function of the independent variable, e.g. a distance-time graph

Re: Experimental Design B/C

Posted: September 9th, 2018, 7:32 pm
by dxu46
UTF-8 U+6211 U+662F wrote:
dxu46 wrote:When is it appropriate to use a line graph over another type of graph?
When both variables are quantative, and the independent variable is continuous, with the dependent variable as a function of the independent variable, e.g. a distance-time graph
Your turn.

Re: Experimental Design B/C

Posted: September 9th, 2018, 7:39 pm
by UTF-8 U+6211 U+662F
You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.

Re: Experimental Design B/C

Posted: September 9th, 2018, 7:47 pm
by dxu46
UTF-8 U+6211 U+662F wrote:You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.
An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.
^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic ;)

Re: Experimental Design B/C

Posted: September 9th, 2018, 7:48 pm
by UTF-8 U+6211 U+662F
dxu46 wrote:
UTF-8 U+6211 U+662F wrote:You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.
An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.
^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic ;)
Try again. Diffusion is not the same thing as dissolution ;)

Re: Experimental Design B/C

Posted: September 9th, 2018, 8:20 pm
by dxu46
UTF-8 U+6211 U+662F wrote:
dxu46 wrote:
UTF-8 U+6211 U+662F wrote:You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.
An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.
^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic ;)
Try again. Diffusion is not the same thing as dissolution ;)
Well, since dissolution causes diffusion (e.g. block of sugar turning into sugar particles which move from high to low concentration), one could argue that these two topics are related, and the answer above is applicable.

Re: Experimental Design B/C

Posted: September 10th, 2018, 5:15 am
by UTF-8 U+6211 U+662F
dxu46 wrote:
UTF-8 U+6211 U+662F wrote:
dxu46 wrote:
An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.
^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic ;)
Try again. Diffusion is not the same thing as dissolution ;)
Well, since dissolution causes diffusion (e.g. block of sugar turning into sugar particles which move from high to low concentration), one could argue that these two topics are related, and the answer above is applicable.
Shrug. That's kind of pushing it, especially since the experiment conducted may or may not have used particles soluble to all the liquids given, but sure. Your turn.

Re: Experimental Design B/C

Posted: September 16th, 2018, 2:53 pm
by dxu46
Bob wonders how being in a swimming pool for an extended amount of time affects body weight. He decides to test this experiment using IV levels of 20 minutes, 40 minutes, and 1 hour.
a. Write a hypothesis for this experiment.
b. List materials and write a condensed procedure for this experiment.
c. Identify and explain one possible experimental error in this experiment.