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Author Question: A hypothetical element, E, has two stable isotopes: E-46 = 46.046 u 64.08% E-51 = 50.826 u 35.92% ... (Read 65 times)

audragclark

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on: Jul 8, 2021

Question 1

A cubic centimeter of lead weighs 11.35 g. How many atoms are in the block?
◦ 6.8 × 1024 atoms
◦ 2.4 × 1023 atoms
◦ 3.3 × 1022 atoms
◦ 5.3 × 1022 atoms
◦ 1.1 × 1025 atoms

Question 2

A hypothetical element, E, has two stable isotopes:

E-46 = 46.046 u 64.08%
E-51 = 50.826 u 35.92%

What is the average atom weight of the element?
◦ 47.76 u
◦ 48.44 u
◦ 49.11 u
◦ 48.50 u
◦ 47.44 u
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by audragclark on Jul 8, 2021

jomama

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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audragclark

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Reply 2 on: Jul 8, 2021
Thanks for the timely response, appreciate it

amynguyen1221

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Reply 3 on: Yesterday
:D TYSM

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