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How much of water I need to make softdrinks reach naturals level on PH

Organization(s):The 1st Al-Mthulif Secondary Girls School at Al-Gonfutha
Country:Saudi Arabia
Student(s):Laian Mohammed Alrashdi
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Teacher:Hanadi Hamza Al-Harbi
Contributors:
Report Type(s):International Virtual Science Symposium Report, Standard Research Report
Protocols:pH
Presentation Video: View Video
Presentation Poster: View Document
Optional Badges:I am a Data Scientist, I make an Impact
Language(s):English
Date Submitted:03/09/2020
Acidic ph to Natural
soft drinks are acidic and exposure to these drinks may result in enamel erosion. This study sought to measure the pH of three sample of soft drinks from different brands, with adding fresh water to them and study the quantity of water we need to change them from Acidic to nature. The objective from this research is to know if water can made this change or not .other objective is to get a visible evidence of what adults always said about softdrinks dangerous . and showing my teenage friends that it was real! Notice : my research only for ph not what soft drinks contains


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Comments

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Mullica Jaroensutasinee
4 Years Ago
Dear Laian Mohammed Alrashdi,
I find your research report interesting and creative. You kept adding drinking water to soft drinks and observed how much drinking water needed to be added until their water pH changes to pH 7.0. Here are my questions.
(1) you wrote that you had 3 soft drink brands tested. How many replicates did you measure per soft drink brand.
(2) Did you calibrate your pH meter before doing this experiment?
(3) your results showed that for the soft drink number 2 (pH 3.4), you added drinking water of 300 ml. But for the soft drink number 3 (pH 4.0), you added drinking water of 350 ml. Why would pH 4.0 added more drinking water than pH 3.4 in order to bring the pH to 7.0?

Keep up your great work.
Mullica
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Hanadi Hamza Al-Harbi Mullica Jaroensutasinee
4 Years Ago
Dear Mrs Jaroensutasinee,

It is my honor to get your comments which encourage me to do my best here is the answer
1-actually I replicated 2 times for each brands at school and result were similar to each other.
2-yes
3- this different gave me lots of questions and I think it refers to contains and quality also it guides me to another questions if bottle or cans could make a different or not !
But in case of my research I m only consider about the ph
thanks with regards .
laian