Day 14

March 23rd

This is the end of my blog, thank you for joining me in witnessing how my experiment of 'Dissolving Tablet in Hydrochloric Acid' unraveled and how may results helped to figure out everyday situations such as a tablet that gives fastest pain relief.
Hope you all learnt something.

Rita Wehbe

Day 13

March 19th

Through searching about articles related to my experiment, I found articles about gastric acids especially hydrochloric acid and information about the concentration of hydrochloric acid in the stomach.

These articles helped me through my experiment and how i performed it.  

Day 12

March 15th

Continuing on with my SRP Report I was able to finally graph my results and do my discussion and conclusion.

With my graph I decided the best option would be to do a column graph as it described what I wanted to show for my experiment in my graph.

My graph went as follows:

In my discussion we were to talk about any trends that were evident in our experiment, accuracy in our experiment, reliability of our experiment, validity of our experiment, and how we can fix problems shown in our experiment.

My discussion went as follows:

Trends that is evident in this experiment show that Panadol and Panamax dissolve around the same time making it more evident that Panadol and Panamax can both dissolve at the same rate in the stomach. Hydrochloric acid is the most dominant acid in the stomach meaning it would be ideal to use hydrochloric acid as it would be what the tablet would dissolve in, in the digestive system mainly in the stomach. This experiment is accurate as it was capable to use appropriate equipment for the experiment, e.g. measuring cylinder to get the amount of hydrochloric acid. Under the same conditions this experiment was performed this experiment 3 times to be reliable. In this experiment there only had one independent and dependent variable while the rest were controlled, this makes this experiment valid. Problems that occurred in this experiment include the fact that the Advil tablet didn’t dissolve creating problems as it was a liquid capsule. To substitute for this I decided to use aspirin instead as it was still a tablet I could have used.

In my conclusion we were to sum up our experiment.

My conclusion went as follows:

The hypothesis was incorrect as, the Advil tablet did not dissolve at all and shows that the aspirin tablet dissolves the fastest being the best medication for fast pain relief. 

Day 11

March 9th

After school I was able to conduct my experiment that I was supposed to have done the week before. I started off with setting up all my equipment and then following the method step by step in which also required me to repeat the experiment 3 times.

My results went as follows

Tablet	Time Taken to Dissolve (min)
	Test 1	Test 2	Test 3	Average
Aspirin	0:15	0:12	0:14	0:14
Panafen plus	4:41	4:58	4:35	4:45
Panadol	1:40	1:30	1:22	1:31
Panamax	1:17	1:25	1:31	1:24

Through this I was able to work through my SRP Report. My plan states that i was using Advil for my experiment but due to me getting the wrong tablet type (as i got liquid capsules) I needed to change my tablet to Aspirin and test how  fast it dissolve in hydrochloric acid. I forgot to take a photo of my aspirin tests but i have photos of the other 4 experiments.

Day 10

March 1st

I was away at school today and wasn't able to do my SRP experiment during our scheduled class lesson and on the 29th of February Ms Reid emailed me wondering what materials I would need for the experiment. I replied stating that I needed:

• 4 beakers
• 1 measuring cylinder
• 4 stopwatches
• 4 stirring spoons
• 4 heat mats
• 120mL of 0.1 M hydrochloric acid

With this equipment I would be able to conduct my experiment and see if my results will support my hypothesis

Day 9

February 23rd

Today we needed to hand up and upload our SRP Plan onto Canvas and during period 2. Once we handed up our printed plan, Mrs Reid read our plans and gave us feedback that would be helpful in writing our report.

From my plan Ms Reid asked for me to find the concentration of hydrochloric acid and how much the stomach can actually hold.

Through finding this it is found easier for me to do my experiment as I knew the exact concentration needed to conduct my experiment.

Day 8

February 20th

Today was when i was able to complete my SRP plan completely as I was able to complete my risk assessment in which needed me to sign electronically. In this I am able to know my risks for each different material used in my experiment, and find out how I can minimise if that risk can be performed in my experiment. In completing my entire plan I had a clear mindset and idea of what I wanted to do for my experiment.

Day 7

February 18th

After  I finished up with the first 4 sections of my plan I decided to finish up the rest of my plan as it was due handed in to the teacher in 5 days on the 23rd and i still had the risk assessment, method, and the risk assessment in which was needed to be signed. We only needed to have 3 total risks and ways to minimise the risk factor. In my risk assessment I decided to do 4 instead of 3 to list all the possible risks that may arise while doing my experiment. My risk assessment went as follows:

Risk	How this risk will be minimised
Beaker/Measuring Cylinder breaks	Wear enclosed shoes Wear safety goggles Handle with care Place beaker/measuring cylinder in the middle of the table so it cannot fall on the ground Clean up any broken glass with dust pan or broom, never pick up with your fingers.
Hydrochloric acid is inhaled/ or causes skin irritation	Wear apron, and gloves when handling hydrochloric acid. Pour hydrochloric acid into the measuring cylinders/beakers over the sink to reduce spillage.
Choking and Ingesting of tablets	Keep out of reach of children. Stay away from the tablets when dissolving.
Hydrochloric acid  can create eye damage as it is toxic	Wear safety goggles.

 

After my risk assessment was complete, it was time to do a brief description of what my method would be for this experiment. My method went as follows:

1. Pour 30mL hydrochloric acid into a beaker first measuring it by using a measuring cylinder
2. Repeat for other 3 beakers
3. Place each tablet into beaker
4. Stir 2 times
5. Time the results of the amount of time it takes to dissolve for each tablet
6. Repeat experiment 3 times for accurate results

With these two sections done of my plan I only had the risk assessment in which needed to be signed electronically done and ready to be handed in on Tuesday the 23rd.

 

Day 6

February 15th

Today I decided to work on my plan and risk assessment for the first part of my SRP. In our plan we had to talk about our problem, hypothesis, aim, material, risk assessment, method, and provide the online risk assessment in which was signed and included all our equipment. Today I decided to only work on the first four things in my plan in which was my problem, hypothesis, aim and all my materials. In my problem we were to mention the main reasoning why we would be performing our experiment (mine being the dissolving of tablets in hydrochloric acid) in which would give us results. My problem is "Which tablet will dissolve the fastest in hydrochloric acid?." In my hypothesis, based on an educated guess I chose that Advil would dissolve the fastest in hydrochloric acid giving the fastest pain relief. I also said that the aim of my experiment would be "to investigate which pain medications will dissolve the fastest in hydrochloric acid." being my main focus for this experiment. Once I had organised may problem, hypothesis, and aim I was able to get the part in which my materials were listed which included:

• Advil
• Panamax
• Panafen Plus
• Panadol
• 120mL Hydrochloric Acid with a 0.1 M concentration
• 4 Beakers
• 4 Stopwatches
• Camera
• 4 Stirring Rods
• Measuring Cylinder

These were the materials I needed in order to perform my experiment.

Day 5

February 6th

I have finally decided what tablets to use for my experiment so i decided to use 4 different type of pain medications in order to see the difference in time it takes to dissolve.

So i decided to use

Panamax

Panadol

Panafen Plus

and Advil

Day 4

February 4th

After consultation with my teacher about my ideas for my SRP plans, I had determined that my idea for my SRP would be the Dissolving of Tablets in Hydrochloric Acid as it is the most common acid present in the stomach. Over all my ideas this had the most understandable reasoning to that idea being that what ever tablet that dissolves the fastest would give the fastest pain relief. Whereas my other ideas didn't have any reasoning about why i would do those ideas.   

Day 3

February 3rd

After some thought about my new idea, I still intended to use the idea of dissolving tablets in a form of acid so after some research I found that there is traces of sodium chloride also known as salt in the stomach and as once you swallow a tablet it travels through to your stomach. Once I ran this idea by the teacher she followed up on my research and actually discovered that hydrochloric acid is the main acid that is present in the stomach. Due to this I considered my experiment being the dissolving of tablets in hydrochloric acid.

Day 2

February 2nd

Today I thought about an idea for my SRP which was to dissolve four different pain medications in lemonade to see which tablet will dissolve the fastest in order to give faster pain relief. With this idea I chose tablets as it is something I have always been curious about how fast tablets dissolve in liquids such as soft drink. Although I liked my idea, when i ran it be the teacher she informed me that there was no reasoning behind why I wanted to dissolve tablets in lemonade specifically meaning I needed to change my idea into a different liquid or experiment all together. I intended to think of something new so I could start preparing my plan to get a head start on my assessment.

Day 1

February 1st

Today we received and went through the assessment notification for the first Science assessment for 2016 being an Student Research Project consisting of a Plan due on the 24th of February, and a Experimental Report and a Blog due on the 23rd of March. We are to think of an experiment and have a reasoning behind our experiment. Over the next few days I wish to think of an idea for my experiment and to get it approved in order to start my plan and experimental report.