A 25 G Sample of Sugar Is Found to Contain

question 46

Multiple Choice

A 25 g sample of sugar is found to contain 51.4% oxygen by mass.Another 250 g sample of the same sugar is also 51.4% oxygen by mass.This is consistent with the:

• A)law of conservation of mass
• B)law of constant composition
• C)law of multiple proportions
• D)first assumption of Dalton's atomic theory
• E)second assumption of Dalton's theory

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Definitions:

Hilum

Indented surface on many organs, serving as a point where nerves and vessels enter or leave.

Glomerulus

A cluster of blood vessels in the kidney that filters blood, initiating the process of urine formation.

Capillaries

The smallest blood vessels in the body's circulatory system, responsible for the exchange of oxygen, carbon dioxide, and other substances between blood and tissues.

Bowman Capsule

A double-layered structure surrounding the glomerulus of each nephron in the kidneys, involved in filtration of blood to form urine.