How Many Moles Are in a 0

question 26

Multiple Choice

How many moles are in a 0.53-kg sample of sulphur dioxide, SO₂? (atomic masses: C = 32 u; O = 16 u)

• A)5.2
• B)8.3
• C)48
• D)1.6 × 10⁴
• E)5.0 × 10²⁴

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Definitions:

Frequency

The number of times an event occurs within a specified period of time; in physics, it is the number of waves that pass a fixed point per unit of time.

Amplitude

The height or strength of a wave signal, which in the context of sound, relates to its loudness, and in light, its intensity.

Delta Waves

Slow brain waves typically associated with deep sleep and certain brain disorders, recorded with an electroencephalogram (EEG).

Electroencephalograph (EEG)

A device used to measure and record the electrical activity of the brain.