An Unknown Diprotic Acid (H₂A)requires 44

question 9

Multiple Choice

An unknown diprotic acid (H₂A) requires 44.39 mL of 0.111 M NaOH to completely neutralize a 0.580 g sample.Calculate the approximate molar mass of the acid.

• A) 406 g/mol
• B) 235 g/mol
• C) 118 g/mol
• D) 59 g/mol
• E) 203 g/mol

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Definitions:

Radioactive Decay

The process by which the nucleus of an unstable atom loses energy by emitting radiation, leading to a change in its number of protons and/or neutrons.

Chemical Bonding State

Describes the condition or manner in which atoms are linked by attractions and interactions between electrons and nuclei.

Plate Tectonics

A scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, which has caused the geographical features we see today.

Rock Layers

Horizontal or nearly horizontal strata of sedimentary rock, each distinct from the layers above and below it, illustrating Earth's geological history.