Question

Cancer Therapy with Iridium Metal When iridium-192 is used in cancer treatment, a small cylindrical piece of $^{192} \mathrm{I}$, $0.6 \mathrm{mm}$ in diameter and $3.5 \mathrm{mm}$ long, is surgically inserted into the tumor. If the density of iridium is $22.42 \mathrm{g} / \mathrm{cm}^{3},$ how many iridium atoms in the sample?

          Cancer Therapy with Iridium Metal When iridium-192 is used in cancer treatment, a small cylindrical piece of $^{192} \mathrm{I}$, $0.6 \mathrm{mm}$ in diameter and $3.5 \mathrm{mm}$ long, is surgically inserted into the tumor. If the density of iridium is $22.42 \mathrm{g} / \mathrm{cm}^{3},$ how many iridium
atoms in the sample?

Added by Benjamin C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Animesh Raj

06/29/2022

Step 1

The formula for the volume $ V $ of a cylinder is given by: \[ V = \pi r^2 h \] where $ r $ is the radius and $ h $ is the height of the cylinder. Given: - Diameter of the cylinder = 0.6 mm, so the radius $ r = \frac{0.6}{2} = 0.3 $ mm. - Height \( h = Show more…

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Cancer Therapy with Iridium Metal When iridium-192 is used in cancer treatment, a small cylindrical piece of $^{192} \mathrm{I}$, $0.6 \mathrm{mm}$ in diameter and $3.5 \mathrm{mm}$ long, is surgically inserted into the tumor. If the density of iridium is $22.42 \mathrm{g} / \mathrm{cm}^{3},$ how many iridium atoms in the sample?