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We appreciate your visit to Naturally occurring iridium has two isotopes iridium 191 190 9605940 amu and iridium 193 192 9629264 amu The atomic mass of iridium is 192 22. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Naturally occurring iridium has two isotopes: iridium-191 (190.9605940 amu) and iridium-193 (192.9629264 amu). The atomic mass of iridium is 192.22 amu.

What is the percent of iridium-193?

Answer :

Final answer:

We determine the percentage of iridium-193 in naturally occurring iridium by setting up an equation based on the weighted average atomic mass of iridium, using the masses of iridium-191 and iridium-193. By solving the equation, we find the proportion of iridium-193 which we can then express as a percentage.

Explanation:

To find the percentage of the isotope iridium-193, let's assume that the proportion of the isotope iridium-191 is x. Therefore, the proportion of iridium-193 would be (1-x). Given that the atomic mass of iridium is a weighted average of the mass of its isotopes, we can set up the following equation based on their atomic masses:

190.96059x + 192.96293(1-x) = 192.22

By solving this equation, we find the proportion of iridium-191 and subtract it from 1 to find the proportion of iridium-193. We then multiply the final result by 100 to express it as a percentage.

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