asam basa

Multiple Choice

What is the Bronsted-Lowry base in the following equation?

• PO₄^3-

• HNO₃

• NO₃^-

• HPO₄^2-

Multiple Choice

According to Arrhenius acid-base theory, an acid ___.

• is an H⁺ acceptor

• is a H⁺ donor

• is a substance that produces H⁺ in water

• turns litmus paper blue

Multiple Choice

What is the role of an acid and a base according to Lewis theory?

• Acid accepts electron pairs, Base donates electron pairs

• Acid donates electron pairs, Base accepts electron pairs

• Acid and Base both accept electron pairs

• Acid and Base both donate electron pairs

Multiple Choice

What is the equilibrium constant (K) for the ionization of water as shown in the image?

• Kw = [H+][OH-]

• Kw = [H2O]

• Kw = [H+]/[OH-]

• Kw = [H+][OH-]/[H2O]

Multiple Choice

What is the formula to calculate the concentration of strong acids?

• [H+] = Ma × a

• [H+] = √Ka × Ma

• [H+] = α × Ma

• [OH-] = Mb × b

Open Ended

Explain the relationship between pH and pOH based on the information provided.

Multiple Choice

Examine the results (color change) of the pH paper shown in the picture. What type of substance was tested?

• an acid

• a base

• a neutral substance

• none of the above

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident