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Author Question: A sample of pure carbon weighing 1.48 g was burned in an excess of air. The mass of carbon dioxide, ... (Read 72 times)

mp14

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on: Jul 8, 2021

Question 1

A new element is discovered. It has two isotopes. The relative abundance of the isotopes and their masses are 18% isotope 1, mass 350.0 u and 82% isotope 2, mass 352.0 u. What is the atomic mass of the element?
◦ 351.6
◦ 351.0
◦ 350.4
◦ 352.0
◦ 350.0

Question 2

A sample of pure carbon weighing 1.48 g was burned in an excess of air. The mass of carbon dioxide, the sole product, was . In a second experiment, 11.62 g of carbon dioxide was obtained. What mass of carbon was burned in the second experiment?
◦ 42.6 g
◦ 3.17 g
◦ 3.54 g
◦ 0.866 g
◦ 11.6 g
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by mp14 on Jul 8, 2021

smrerig

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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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mp14

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Reply 2 on: Jul 8, 2021
Excellent

tandmlomax84

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Reply 3 on: Yesterday
Gracias!

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