Question #294110
The percentage of the x-21 isotope is 87.99% what is the contribution to the weight average from the x-21 isotope which has a mass of 21.00 amu
Expert's answer
The abundance of X-19 + The abundance of X-21 = 100%
12.01% + The abundance of X-21 = 100%
Hence,
The abundance of X-21 = 100% - 12.01% = 87.99%
The abundance of X-21 = 87.99%
Answer: The percentage of the X-21 isotope is 87.99%.
