ht tp :/ /i1. ti nypi c.c om/ 7yr papx.j pg
I did this experiment about antacids and i have to write three validity issues i could've had. I have two but I need one more.
1. I should have done more trials for more accurate results
2. when i stirred the antacid and acid solution together i could have stirred it faster for one than the other
3. ???????
I would use precision instead of accuracy in #1.
#2 I don't understand. It seems to me that how fast you stirred is not relevant as long as you stirred it so as to mix completely. Rewording to that context would make more sense to me.
For #3, you may have made an error in reading the buret, made an error in weighing, not titrated (I assume you titrated these samples) to the same end point. Any of the three could have happened.
no i did not titrate....but i guess you're right about #2 i wasn't sure what to write
To come up with a third validity issue for your experiment on antacids, you can consider the following potential concern:
3. Lack of control over variables: In scientific experiments, it is crucial to control as many variables as possible to ensure accurate and reliable results. One validity issue could be that your experiment lacked proper control over potential influencing factors, such as temperature, pH of the acid solution, or exact volume of antacid used. These uncontrolled variables could introduce confounding factors that affect the outcomes and make it difficult to draw definitive conclusions.
To avoid this issue, you could have implemented measures to control these variables. For example, you could have used a thermometer to ensure the same temperature for each trial, maintained consistent pH levels of the acid solution, and measured the exact amount of antacid used using a calibrated measuring instrument.
By considering these validity issues, you demonstrate a critical mindset towards the experimental design and identify areas for improvement in future studies. Remember, the scientific process involves continuously refining experiments to enhance accuracy and reliability.