A 250 ML Sample of 0

question 48

Multiple Choice

A 25.0 mL sample of 0.723 M HClO₄ is titrated with a 0.27 M KOH solution. The H₃O⁺ concentration after the addition of 80.0 mL of KOH is M.

• A) 1.0 × 10^{- 7}
• B) 0.44
• C) 2.8 × 10^{- 13}
• D) 0.72
• E) 3.6 × 10^{- 2}

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Definitions:

Geologic Events

Significant occurrences in the Earth's history that have shaped its surface and structure, including volcanic eruptions, earthquakes, and glaciations.

Deposition

The geological process in which sediments, soil, and rocks are added to a landform or landmass due to the action of wind, water, or ice.

Metamorphic Rocks

Rocks that have been transformed from pre-existing rock types through heat, pressure, and/or chemically active fluids.

Granite

A hard, granular, intrusive igneous rock composed mainly of quartz, mica, and feldspar.