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20 March, 22:06

Calculate the atomic mass of iridium. Iridium has two isotopes. Iridium-191 has a mass of 191.0 amu and a percent abundance of 37.58%. Iridium-193 has a mass of 193.0 amu and a percent abundance of 62.42%.

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  1. 20 March, 23:27
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    Atomic mass of Iridium is 192.25 amu

    Step-by-step explanation:

    Percentage abundance of Iridium-191 = 37.58 %

    Mass of Iridium-191 = 191 amu

    Percentage abundance of Iridium-193 = 62.42 %

    Mass of Iridium-193 = 193 amu

    We need to find atomic mass of Iridium.

    Atomic mass of Iridium = 0.3758 x 191 + 0.6242 x 193

    Atomic mass of Iridium = 192.25 amu

    Atomic mass of Iridium is 192.25 amu
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