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Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus
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You are given samples of five substances. At room

Chapter , Problem 1DE

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QUESTION:

These exercises are not divided by category, although they are roughly in the order of the

topics in the chapter. They are not paired.

The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302, 205.97444, 206.97587, and 207.97663 amu. The relative abundances of these four isotopes are 1.4, 24.1, 22.1, and 52.4% respectively. From these data, calculate the atomic weight of lead.

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QUESTION:

These exercises are not divided by category, although they are roughly in the order of the

topics in the chapter. They are not paired.

The element lead (Pb) consists of four naturally occurring isotopes with atomic masses 203.97302, 205.97444, 206.97587, and 207.97663 amu. The relative abundances of these four isotopes are 1.4, 24.1, 22.1, and 52.4% respectively. From these data, calculate the atomic weight of lead.

ANSWER:

Step 1 of 3

Isotopes are atoms of the same element that have different number of neutrons.

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