Aim :
I want to find out the levels of acidity and bases is in house-hold chemicals :
Goals :
- Find out how acidic or how basic is toilet cleaner
- Find out how acidic or how basic is floor cleaner
- Find out how acidic or how basic is dish-washing soap
- Find out how acidic or how basic is Spray And Wipe Away
- Find out how acidic or how basic is 7up
Research :
Acids vs Bases
Introduction of Acids and Bases
Strengths and weakness of an acid or a base
Article
Hypothesis
- I predict that toilet cleaner is a base due to its cleaning and soapy properties that can be considered to be a base. I will also predict that the level of the bases is going to be a 12 due to the strength of chemicals reaction from toilet cleaner
- I predict that floor cleaner is also a base because again due to its’ cleaning and soapy properties that can be considered to be a base. I predict the level of bases of floor cleaner is going to be a 10
- I predict that dish-washing soap is going to a base due it’s purpose of cleaning stuff and it gives it soapy effects. I also predict that level of base going to a 9
- I predict that spray and wipe away is an acid because the way to cleans dirt and grub. It cleans dirt and messes by eating it away or dissolving it. In my perspective, I’ll think that it’s an acid due to its dissolving properties.
- I predict that 7up is acidic because it has carbon dioxide properties. But it depends if the soda is still fizzy or carbonated because if it loses it’s carbon it will be a neutral PHD. Losing it’s carbon will lose it’s acidity and it has no base structure which as no base. The level of acidity will be a close 5 or 7.
Variables :
Independent Variables :
Things we control on the experiment to change the results of our experiment ( How we make the colours appear when using litmus paper or the universal indicator.
Dependent Variables :
Things we measure and record for the experiment ( How we record the colours that appear and determine if it’s a base or an acid)
Controlled Variables :
Using the same type of equipment
- Same Litmus Paper brand
- Same Universal Indicator
- Same Liquid and Substances
- Same Equipment
Method
Equipment
- Spotting Titles
- Pipettes
- Universal Indicator
- Litmus Paper
Instructions
- Gather all of your equipment
- Get your spotting tile and add one drop of universal indicator
- Add one drop of your liquid or substances into the spotting tile with the universal indicator
- Add the litmus paper with the liquid and observe and analyse what colour appears.
- Repeat step 2-4 with a different liquid or substances
Results
Include your results here:
Chemical being tested |
Colour in blue litmus |
Colour in red litmus |
Colour in Universal indicator |
Toilet Cleaner |
Red |
Red |
10 |
Floor cleaner |
Blue |
Blue |
1 |
Dish-washing soap |
Blue |
Blue |
Natural – 7 |
Spray and wipe away |
Red |
Red |
8 |
7 up |
Red |
Red |
3 |
Why ?
Chemical being tested |
Acid or Base? |
Evidence from investigation |
Toilet Cleaner |
Acid |
Because the colour and litmus paper turned red. |
Floor cleaner |
Base |
Because the colour and litmus paper turns blue. |
Dishwashing soap |
Base |
Because the colour and litmus paper turns blue. |
Spray and wipe away |
Acid |
Because the colour and litmus paper turns red. |
7 up |
Acid |
Because the colour and litmus paper turns red. |
Discussions
Why did different household chemicals change different colours ? (Link this IONS Present)/ How did you know if these chemicals change were acidic or basic
The reason that the chemicals change into different unique colours is due depending how the chemicals are acidic or basic. If we look at their electron configuration we can see two elements that are chemical bonded together with either a hydrogen atom or hydroxide atom. Hydrogen atom is considered to be acidic while Hydroxide is basic or in other soapy for cleaning products.
Universal indicators that we used are made for finding out if something is acidic or a base. The colour of it also comes to play because we can see that universal indicators are neutral due to its green colour and also tells us the PH level will be 7. If we put an acid for an example, it can change into a warmer colour due to its acidic properties. It can also drop the Ph level that tells us that something is acidic. It also works for bases but it changes into a cooler colour while having the Ph level go up.
Why might Universal Indicator be much more effective or more useful than Litmus Paper
Conclusions
Did all your experiments work ? ( If they didn’t’ Why ?)
Yes it did
What could you do to improve your science next time ?
What happens if you have different variables ?
Explanations
Alkali = Base that dissolves in water