Liquid Heptane, C₇H₁₆ , Burns in Oxygen Gas to Yield

question 147

Multiple Choice

Liquid heptane, C₇H₁₆ , burns in oxygen gas to yield carbon dioxide and water. What mass of carbon dioxide is produced when 15.0 mL of heptane burns completely? (density of heptane = 0.6838 g/mL)

• A)46.1 g
• B)71.8 g
• C)4.49 g
• D)6.59 g
• E)31.5 g

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Definitions:

Sensorimotor Stage

The first stage in Piaget's theory of cognitive development, from birth to about 2 years of age, where infants learn about the world through their sensory impressions and motor activities.

Concrete Operational

A stage in Jean Piaget's theory of cognitive development during which children (ages 7-12 approximately) gain a better understanding of mental operations, leading to more logical thoughts about concrete events.

Formal Operational

The stage of cognitive development, according to Piaget, where individuals can think abstractly and systematically.

Assimilation

The cognitive process of fitting new information into pre-existing cognitive schemas, perceptions, and understanding.