A 130-ML Sample of Gas Is Collected Over Water at 22°C

question 104

Multiple Choice

A 130.-mL sample of gas is collected over water at 22°C and 753 torr. What is the volume of the dry gas at STP? (The vapor pressure of water at 22°C is 20. torr.)

• A) 111 mL
• B) 135 mL
• C)130. mL
• D) 119 mL
• E) none of these

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Definitions:

Actin

Spherical protein that plays a role in cell movements; the main component of thin filaments in a sarcomere.

Vesicle

Saclike, membrane-enclosed organelle; different kinds store, transport, or break down their contents.

Fusion

The process of combining two or more entities into a single entity, often referring to the merging of atomic nuclei to form a heavier nucleus, releasing energy.

Cell Cortex

Reinforcing mesh of cytoskeletal elements under a plasma membrane.