A Weak Monoprotic Acid Is Dissolved in Water

question 78

Multiple Choice

A weak monoprotic acid is dissolved in water. A solution that is 0.10 M is found to be 1.2% ionized. Calculate K _a for the acid.

• A) 1.4×10 ^{- 5}
• B) 1.2×10 ^{- 3}
• C) 1.1×10 ^{- 2}
• D) 0.12
• E) 12

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Definitions:

Cladodes

Photosynthetic stems found in some plants that resemble leaves, functioning in photosynthesis and sometimes water storage.

Collenchyma

In plants, simple tissue composed of living cells with unevenly thickened walls; provides flexible support.

Pectin

A natural polysaccharide found in fruits, used as a gelling agent in food production.

Parenchyma

A type of plant tissue composed of living cells, usually having only thin primary walls and varying widely by morphology and metabolism.