using the information in the table to the right, calculate the average atomic mass of strontium. report to…

using the information in the table to the right, calculate the average atomic mass of strontium. report to two decimal places. amu strontium isotope mass (amu) abundance sr - 84 83.913428 0.56% sr - 86 85.909273 9.86% sr - 87 86.908902 7.00% sr - 88 87.905625 82.58%

using the information in the table to the right, calculate the average atomic mass of strontium. report to two decimal places. amu strontium isotope mass (amu) abundance sr - 84 83.913428 0.56% sr - 86 85.909273 9.86% sr - 87 86.908902 7.00% sr - 88 87.905625 82.58%

Answer

Explanation:

Step1: Convert abundances to decimals

$0.56% = 0.0056$, $9.86%=0.0986$, $7.00% = 0.07$, $82.58%=0.8258$

Step2: Multiply mass by abundance for each isotope

For Sr - 84: $83.913428\times0.0056 = 0.4699152$ For Sr - 86: $85.909273\times0.0986=8.4706543$ For Sr - 87: $86.908902\times0.07 = 6.0836231$ For Sr - 88: $87.905625\times0.8258=72.682466$

Step3: Sum the products

$0.4699152 + 8.4706543+6.0836231 + 72.682466=87.7066586$

Answer:

$87.71$