**Title: Analysis of Tin Isotopes from Planetesimal 98765 ALEKS**A robotic spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples:| Isotope | Mass (amu) | Relative Abundance ||---------|------------|--------------------|| \(^{112}\text{Sn}\) | 111.9 | 90.3% || \(^{119}\text{Sn}\) | 118.9 | 9.7% |**Instructions:**Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Round your entry for the atomic mass to 3 significant digits.**Caution:**Your correct answer will have the same format but not necessarily the same numbers as the entry for tin in the Periodic Table we use here on Earth.*Note: The isotopic data provides a guide for scientists to determine the average atomic mass of tin on this specific celestial body based on the given isotopic composition.*

Average Atomic mass = = (M1X1 + M2X2)/(X1+X2) = (111.9×90.3 + 118.9×9.7)/100 = 112.579 amu = 113

Answered: mass е relative (amu) abundance 111.9…

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Chemistry

mass е relative (amu) abundance 111.9 90.3% 118.9 9.7%

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

**Title: Analysis of Tin Isotopes from Planetesimal 98765 ALEKS**

A robotic spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar System. Mass-spectroscopic analysis produced the following data on the isotopes of tin in these samples:

| Isotope | Mass (amu) | Relative Abundance |
|---------|------------|--------------------|
| \(^{112}\text{Sn}\) | 111.9 | 90.3% |
| \(^{119}\text{Sn}\) | 118.9 | 9.7% |

**Instructions:**

Use these measurements to complete the entry for tin in the Periodic Table that would be used on 98765 ALEKS. Round your entry for the atomic mass to 3 significant digits.

**Caution:**

Your correct answer will have the same format but not necessarily the same numbers as the entry for tin in the Periodic Table we use here on Earth.

*Note: The isotopic data provides a guide for scientists to determine the average atomic mass of tin on this specific celestial body based on the given isotopic composition.*

Expert Solution

Step 1

Average Atomic mass =

= (M₁X₁ + M₂X₂)/(X₁+X₂)

= (111.9×90.3 + 118.9×9.7)/100

= 112.579 amu

= 113

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