Question

The relative atomic mass oF iridium is 192.22. Explain whether a naturally occurring sample of iridium contains more 191 Ir or 193 Ir.

Answer 1

Answer:

191x + 193(1-x) = 192.23

x = .385

so,

38.5% Ir191

61.5% Ir193

or, since 192.23 is about 5/8 of the way from 191 to 193, 5/8 will be Ir193, or 62.5%.