At the Stoichiometric Point in the Titration of 0

question 25

Multiple Choice

At the stoichiometric point in the titration of 0.260 M CH₃NH₂(aq) with 0.260 M HCl(aq) ,

• A)the pH is less than 7.
• B)[CH₃NH₃⁺] = 0.260 M.
• C)the pH is 7.0.
• D)[CH₃NH₂] = 0.130 M.
• E)the pH is greater than 7.

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Definitions:

Cement

A binding material, often used in construction, made by grinding calcined limestone and clay to a fine powder which hardens when mixed with water.

Quarries

Open-pit mining operations where stone, limestone, marble, or other materials are excavated for building and decorative uses.

Mudcracks

Cracks in clay-rich soil or sediment that occur as it dries, typically indicating past water presence.

Bedding

The formation of parallel layers of sediment as they accumulate over time, indicating successive periods of deposition.