00:01
Hi, now we will discuss about iridium isotopes.
00:04
Edium isotopes were iridium 191 and iridium 193.
00:09
Isotopic masses were given.
00:11
Iridium 19 .9.
00:16
Mass and its percentage abundance we have to find out.
00:20
Ir 193 has 192 .9633 you mass.
00:27
Its percentage abundance also we have to find out.
00:30
And also given that the average atomic mass of iridium is given 192 .217 u u is the atomic mass units so here average atomic mass is given and isotopic masses were given from that information we have to find out the percentage abundance of iridium 191 and iridium 193 so we know that average atomic mass of any isotope can be found by using the equation iridium one isotope mass into percentage abundance.
01:23
The first isotope mass and percentage abundance plus iridium second isotope mass into percentage abundance.
01:35
This is the general equation to find isotopic mass for any isotope.
01:42
Here we have provided with the average atomic mass 192 .217 u.
01:52
And iridium 1 isotope mass is given it is 190 .960 .9 into percentage abundance we have to find out.
02:07
Let us consider percentage abundance of iridium 191 isotope as x...