GOB Chemistry

Learn the toughest concepts covered in your GOB - General, Organic, and Biological Chemistry class with step-by-step video tutorials and practice problems.

Nuclear Chemistry

Measuring Radioactivity

Measuring Radioactivity involves utilizing different conversion factors. 

Measuring Radioactivity

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concept

Measuring Radioactivity Concept 1

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example

Measuring Radioactivity Example 1

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Problem

A typical chest X-ray exposes a patient to an effective dose of 0.09 mSv. How many Rad is this?

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Problem

Two technicians in a nuclear laboratory were accidentally exposed to radiation. If one was exposed to 5 mGy and the other to 9 rad, which technician received more radiation?

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Problem

A solution of iodine-131, a radioisotope used in the diagnosis and treatment of thyroid disease, is found just prior to administration to have an activity of 1.08 x 106 Bq/mL. If 2.57 mL were delivered intravenously to the patient, what dose of I-131 ( in µCi) did the patient receive?