antimony sb has two naturally occurring isotopes sb 121 which has a percent abundance of 5721 an

Name: antimony sb has two naturally occurring isotopes sb 121 which has a percent abundance of 5721 and a mass of 12090 amu and sb 123 which has a 4279 abundance and a mass of 12290 amu part a cal 75778
Uploaded: 2022-11-13T19:52:57-08:00
Duration: 2 min 49 s
Channel: Jennifer Hudspeth
Description: antimony sb has two naturally occurring isotopes sb 121 which has a percent abundance of 5721 and a mass of 12090 amu and sb 123 which has a 4279 abundance and a mass of 12290 amu part a cal 75778

Question

Sudhir Kumar · Accepted Answer

Step 1: Convert the percentages into decimals by dividing by 100. So, 57.21% becomes 0.5721 and

Question

Antimony (Sb ) has two naturally occurring isotopes: Sb -121, which has a percent abundance of 57.21 % and a mass of 120.90 amu , and Sb -123, which has a 42.79 % abundance and a mass of 122.90 amu . Part A Calculate the atomic mass for antimony using the weighted-average mass method.

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