The of Some Weak Acid HA Is 1

question 56

Multiple Choice

The of some weak acid HA is 1.76 × .The pH of a buffer prepared by combining 15.0 mL of A^- and 50.0 mL of 1.00 M HA is ________.

• A)1.705
• B)4.232
• C)0.851
• D)2.383
• E)3.406

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Definitions:

Basaltic Lava

A type of magma or lava that is low in silica and has a relatively low viscosity, leading to smoother flow characteristics.

Obsidian/Glass

A natural volcanic glass formed from the rapid cooling of acidic lava, known for its conchoidal fracture and sharp edges.

Ash

Fine particles of volcanic rock and glass created during volcanic explosions, which can be carried long distances by the wind.

Explosive Eruptions

Volcanic eruptions characterized by the violent expulsion of gases, lava, and rock fragments from a volcano.