An Experiment with ⁵⁵Co Takes 47

question 56

Multiple Choice

An experiment with ⁵⁵Co takes 47.5 hours.At the end of the experiment,1.90 ng of ⁵⁵Co remains.If the half life is 18.0 hours,how many ng of ⁵⁵Co were originally present?

• A)2.47 ng
• B)3.05 ng
• C)3.28 ng
• D)11.8 ng

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Definitions:

Anatman

Buddhist doctrine that there is no separate self.

Eternal Atman

The concept in Hindu philosophy of the true self, or soul, which is eternal and transcends the physical body and personal identity.

Practicing Rituals

The act of performing ceremonial actions prescribed by tradition or by sacerdotal decree.

Harmonize

To bring into agreement or concord, especially musically or in terms of ideas, actions, or conditions.