IB Chem Ideas

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IB Chem Ideas

Post  Admin on Wed Jan 19, 2011 6:53 am

Pool of putty
Gel Electrophoresis
The biochemical proceses and different types of energy involved in engines and the fuel they run off of.

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Engine

Post  Min Ho Oh on Thu Jan 20, 2011 1:03 pm

Different Types of Fuels used in the Engine...

Which types of fuel creates the largest amount of Energy?

What is the aspect of fuel that creates an energy the most?

How do we measure the amount of energy that fuel exerted? What is the efficiency of the engine?


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Bottle Rockets!!!!

Post  Namwan on Fri Jan 21, 2011 6:42 am


We could build bottle rockets, and test different factors affecting the height of the bottle rocket launch.

We could either use different kinds of gas to launch the rocket (helium vs. oxygen vs. sulfur hexaflouride, etc.)

or we could test how the structure of the rocket affects the height it reaches

Fun?

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(from Andrea) oxygen levels in the lake!!!

Post  Namwan on Fri Jan 21, 2011 6:45 am

measure the levels of oxygen within lakewater/ other water using a spectrophotometer

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Turning biochem fuels into Physical energy

Post  Alexander Kippe on Fri Jan 21, 2011 6:47 am





Use different fuel like ethanol, Syngas, wood, methanol, Butanol. Burn the fuels to get the energy out and get it to water to make steam that steam will turn a steam wheel. Measure the RPM for the steam wheel with a Rotary motion sensor that works with Logger Pro or use a high speed camera. Measure the temperate of the flame for the fuel and the time the fuel burns.

What fuel has the most energy?
Is the temperate or time of the flame more import for heating up the water to make steam and turn the wheel?
Does the size of the glass tube (dim.) change the RPM and the steam produce? Should the glass tube be heat to stop condisna (steam turning into liquid water)?
What size of glass flask and ml of water in flask is the best for both amount of steam produce and time of steam produce that can rotor the wheel?


Materials

1) flask, round bottom, single neck
1) rubberstopper with hole in top
1) glass tube
1) high speed camera or Rotary Motion Sensor
1) steam wheel
2) .5 kg of ethanol C2H5OH burn using wick lamp
2) .5 kg of gasoline burn using wick lamp
2) .5 kg of wood
2) .5 kg of propane C3H8 burn using bunsen burner
1) wire gauze, 10 x 10 cm with fiber center
1) Ring support with clamp
1) Ring stand

Amount of fuel can change and types of fuels can change if needed.

Could use Gasoline E0, E5, E10, E15 as different types of fuel. Burn using wick lamp. To find out if the ethanol content changes the energy store in the substance. Also, if it changes the amount of heat give off in a period of time.




Last edited by Alexander Kippe on Mon Jan 24, 2011 10:17 am; edited 8 times in total

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Instant hot ice

Post  zhuoting on Sun Jan 23, 2011 9:52 pm

Instant hot ice

For this experiment we will need:
Sodium Acetate + water + pan

When sodium acetate trihydrate crystals are heated, they melt. When this melt cools, it gives a supersaturated solution of sodium acetate in water. By clicking the solution, a nucleation center is formed which causes the solution to crystallize into solid sodium acetate trihydrate again. And it is exothermic,so the ice is hot.

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Top 3 Ideas

Post  Admin on Mon Jan 24, 2011 6:52 am

Pool of Putty
Oxygen levels in lake vs other water
Turning biochem fuels into energy.

-Each class does 2 trials of each thing we are testing.
-Split up by class (chem,bio,physics) into sections (problem, procedure, outcome)

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The Purpose of Experiment

Post  Min Ho Oh on Tue Jan 25, 2011 8:14 am

Today, we mostly talked about how to design the oxygen level experiment.

I believe that we made an great advance for our experiment.

But I think we missed the important factor....

'Why are we doing this experiment?'

We are not doing this experiment, because we have to do 'ib group 4 project'.

We must doing this experiment for some purpose...

Do you remember what IB chemistry HL students did last year?

They found the effectivness different types of cleaners. They also made the school clean! (They use the school as the field of experiment)

OUR EXPERIMENT MUST HAVE THIS KIND OF ASPECT!

I really want to do some 'experiment', not 'school work'. Be more professional scientist, fellows

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PICTURES !

Post  Admin on Wed Jan 26, 2011 6:56 am

Make sure you take pictures of the actual experiment so that we can add it into the power point.

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Experiment plan

Post  Admin on Thu Jan 27, 2011 6:41 am

Research Question: Does temperature effect dissolved oxygen content in water ?
Types of water: Tap water and lake water.
Materials: Sample of tap water and lake water, dissolved oxygen probe, thermometer, hot plate, flask.
Hypothesis: If the temperature of lake water is increased, then the dissolved oxygen level will decrease because it is an open system and oxygen content will be lost in the form of steam.

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BOATS BEING RESERVED!

Post  Harrison Kay on Thu Jan 27, 2011 1:13 pm

Folks,

FYI, the physics class is reserving paddleboats for use on Monday and Tuesday, Jan. 31 + Feb. 1. If your class is interested in using them, contact Harrison!

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