Thursday, June 17, 2010

Crummy Details

Well this is what i did for my epxeriment
- researched info
- bought materials
- followed my method
- got information to back up my results

Well the vingear lost weight because the acetic acid int he vingear reacted with the copper oxide and issolved it.
The Bleach formed all those green spots which is actually called verdigris because the chemical sodium hypochlorite reacted with the copper
THe lemon coppers los weight becuase the citric acid dissolved the copper oxide
The water did nothing

So thata just a sum up

Well you guys have seen the pics so that all from me

Monday, June 14, 2010

Awesome fungul pics


Look the cool fungus in hte garbage bag. Thank god we had plastic gloves. It felt rubbery. I named that white one with black spots cow. And i named the grey one cloud.

Pictures finally after 4 weeks



This is one of the copper pipes which were in the bleach solution. You can see all that powdersish spots on its and inside it too




















Look the spots are pretty much falling off





























This is the copper pipe in the vinegar solution. it looks smooth inside the cup









Look how blue the vingear solution has gotten

















This is all that digusting fungus./ bacteria which grew in the lemon solution

Sunday, June 13, 2010

Whoops

I know I still haven't posted the pics. I will do it soon. i juts need to find the cmaera that i used. Well I was searching up info from my experiment and I have bad and good news. Well all the materials are supposed to react with the copper. However they react differently

The bleach contains Sodium hypochlorite which is a chemical compound consisting of sodium, oxygen and chlorine. This is really reactive with metals. When in prescence with copper it forms copper chloride. This is a type of verdigris which is the the green powdery stuff that formed.

The vingear reacts differently as it actually cleans the copper. It contains this acid which actually gets rid of the copper oxide which has formed. See when i started the epxeriment the copper had already oxidized because it was exposed to oxygen. But when I got copper pipes out of the solution it had become shiny because the copper oxide had disoolved. This is why the solution had turned bluey. Because the dissolved copper oxide had mixed with the vinegar solution which had water in it. Lemon is also acts similaryliy to vinegar i think. But I'm not really sure

I scrpaed off the greenish stuff ont he copper pipes which had been in the bleach solution. When I scraped it off the copper was shiny. I think because I also scraped off the copper oxide which is a browny colour. In one of my pipes there was also a hole.

Monday, May 31, 2010

My Dodgy Results

Omg measuring the copper pipes was disgusting
All of the Lemon Samples had this massive layer of fungus and bacteria on the top
I'll post the pictures soon
It was soo gross

Well for my Bleach result i do not know if they are legit because remeber how in my earlier posts i showed you that these bluey black powdery spot had formed. Well when I was observing I touched it and it came off straight away. So then I actually scraped some off and not only did the powdery stuff go but some of the copper piper brokes off and I could see a new shiny layer of copper.

The results I gave was the weight including the powdery stuff. I'm not sure if the powdery stuff is part of the degradation of the copper pipe. So maybe I should scrape it all off and then measured the pipe because then I would get totally different results.

Draft Results

Well Today I measured my Copper pipes
Here are the result
Sample 1 water - first measurement = 14.5g
- 2nd measurement = 14.6g
Sample 1 Lemon - First measurement = 14.3g
- 2nd measurement = 14.5g
Sample 1 Vinger - First measurement = 15.1g
- 2nd Measurement = 14.9g
Sample 1 Bleach - 1st meas = 14.6g
- 2nd meas = 15.8g

Sample 2 Water - 1st meas = 14.4g
- 2nd meas = 14.5g
Sample 2 Lemon - 1st meas = 14.2g
- 2nd meas = 14.3g
Sample 2 Vinegar - 1st meas = 15.1g
- 2nd meas = 14.9g
Sample 2 Bleach - 1st meas = 14.4g
- 2nd meas = 17.9g

Sample 3 Water - 1st meas = 14.3g
- 2nd meas = 14.4g
Sample 3 Lemon - 1st meas = 14.3g
- 2nd meas = 14.4g
Sample 3 Vinegar - 1st meas = 14.4g
- 2nd meas = 14.2g
Sample 3 Bleach - 1st meas - 14.3g
- 2nd meas = 17.5g

Wednesday, May 12, 2010

Repete of Method

First my dad cut the copper pipe into 5 cm length sections with a saw. He cut 12 portions. I then labelled the clear plastic cups ,which were all the same size, with the names of the different solutions. The different solutions are the water and vingear, water and lemon juice, water and bleach and just water. I need 12 cups because it have to repete the experiment three times. to make it fair.

I then measured the water and lemon juice with a tablespoon. I put 3 tablespoons of water and three tablespoons of lemon juice. I also used a neurofen dropper to make it exact. I repeted this with the bleach and vinegar solution. For the cup with just water i put 6 tablespoons of water. The above steps were then repeted three times.

before I put the copper pipe sections in each cup. I measured each copper pipe section first. I then put one copper pipe section in each cup. i then put the cups in the chocolate boxes so that they wouldn't be tipped over as easily. They are all stored in the cubby shelf of my cupboard. After 4 weeks I am planning on measuring the copper pipes gain to see the percentage difference in weight. I'm not sure if it will be a gain or loss in weight.

To get the exact measurements of the weigt i used this awesome electronic scale which measures a point of a gram. How cool is that.