Using the following image, what substance is most likely a weak acid?

Question

Using the following image, what substance is most likely a weak acid??  
A. Antacid  
B. Borax  
C. Milk  
D. Salmon

Accepted Answer

Correct Answer: (D)Salmon. 
Rationale: Salmon is most likely a weak acid.A weak acid is a substance that partially dissociates in water, producing a moderately acidic solution with a pH less than 7 but generally not extremely low (like the pH of strong acids). Based on typical pH values: antacids and borax are basic (pH &gt; 7), milk is very slightly acidic, and salmon has a more distinctly acidic pH.A) AntacidAntacids are medicinal bases (e.g., calcium carbonate, magnesium hydroxide, aluminum hydroxide) designed to neutralize excess stomach acid (HCl). They have pH values well above 7, typically in the range of 9-10. They are bases, not acids.B) BoraxBorax (sodium borate) is a salt that produces a basic solution when dissolved in water due to the hydrolysis of the borate ion. Its pH is approximately 9.2. It is also a base.C) MilkFresh milk is slightly acidic due to the presence of lactic acid and other components, with a pH around 6.5-6.7. It can be considered a very weak acid. However, its acidity is mild and close to neutral.D) SalmonSalmon, like many meats, has an estimated pH around 6.0-6.2. This is moderately acidic and distinctly below the neutral pH of 7. Among the options that are acidic (milk and salmon), salmon has a lower pH value, making it a clearer example of a weak acid. The acidity in animal tissue comes from compounds like lactic acid and phosphate esters.Conclusion:On the pH scale, substances below 7 are acidic, with weaker acids typically ranging from just below 7 down to about 4. Antacids and borax are basic. While milk is slightly acidic, salmon has a more pronounced acidic pH, characteristic of a weak acid. Therefore, salmon is the most likely weak acid among the choices.

Using the following image, what substance is most likely a weak acid?

A
Antacid

B
Borax

C
Milk

D
Salmon

Salmon is most likely a weak acid.

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Related Questions

Using the following image, what substance is most likely a weak acid?

A Antacid B Borax C Milk D Salmon

Salmon is most likely a weak acid.

Topic Flashcards

Mini Quiz

Related Questions

A
Antacid

B
Borax

C
Milk

D
Salmon