Calculate the Number of Moles and the Mass of He

question 47

Multiple Choice

Calculate the number of moles and the mass of He gas present in a 2.00 L steel container if the pressure is 6.50 atm, and the temperature is 42.0°C.

• A)1.00 mol, 4.00 g
• B)0.503 mol, 2.01 g
• C)3.77 mol, 15.1 g
• D)4.99 x 10⁴ mol, 1.25 x 10⁴ g
• E)6.65 x 10³ mol, 2.66 x 10⁵ g

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Definitions:

Representation

The act of standing for or symbolizing something else, or an accurate depiction of something in a particular medium.

Mental Picture

A visual representation formed in the mind, which can be recalled or imagined without the physical presence of the object.

Object

In general usage, any material thing that can be seen and touched. In psychological contexts, an object can refer to a target of attention or affection.

Piaget

Jean Piaget was a Swiss psychologist known for his pioneering work in the study of child development and his theory of cognitive development that explains how children construct a mental model of the world.