A class was performing an experiment to discover the pH values of some common household substances. The results of three groups are shown in the table below.
Substance
Group 1 pH
Group 2 pH
Group 3 pH
Lemon juice
2.2
2.2
2.1
Vinegar
2.8
2.8
8.2
Baking soda
8.4
8.5
8.4
Milk of magnesia
10.2
10.3
10.2
Which statement best describes evidence that Group 3's data are less valid than the data for the other two groups?
Group 3's pH value for lemon juice is lower than the values of the other two groups.
Group 3's pH value for vinegar is much higher than the values of the other two groups.
Group 3's pH value for baking soda does not exactly match the values of the other two groups.
Group 3's pH value for milk of magnesia is different from the value obtained by Group 2.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A class was performing an experiment to discover the pH values of some common household substances. The results of three groups are shown ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
The genetic code for an organism is contained in its DNA molecules. What determines the instructions for a specific trait in an organism
Answers (1)
What is the purpose of a control sample that is known to be from a given species in an eDNA surveillance for that species? A. To identify samples containing the target DNA B. To produce multiple banding patterns in a gel C.
Answers (1)
How can we learn about what the buffalo are eating? What kinds of data do we need?
Answers (1)
At which part of the business cycle is business at its best? A. Expansion B. Trough C. Recession D. Peak
Answers (1)
Does the male or female eagle sit on eggs
Answers (1)
New Questions in Biology
What is the term for the curved, parabolic path that an object follows when thrown, launched, or otherwise projected near the surface of the Earth? ... ?
Answers (1)
Lactic acid bacteria such as Lactococcus A. produce catalase. B. are obligate fermenters. C. require anaerobic environments. D. use oxygen as a final electron acceptor.
Answers (1)
Which body system is responsible for breaking down food molecules so that they are small enough to be used by cells? excretory system endocrine system digestive system circulatory system
Answers (2)
During which stage of team development do team members attempt to jockey for power, ask many questions and establish dubious goals?
Answers (1)
Where did pompeii worms get their names from
Answers (1)