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Author Question: How many C2H4 molecules are contained in 45.8 mg of C2H4? The molar mass of C2H4 is 28.05 g mol-1. (Read 83 times)

lracut11

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on: Nov 18, 2019

Question 1

How many moles of N2O4 are in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g mol-1.
◦ 1.00 mole N2O4
◦ 7.02 × 103 moles N2O4
◦ 1.42 × 10-4 moles N2O4
◦ 0.829 moles N2O4
◦ 1.21 moles N2O4

Question 2

How many C2H4 molecules are contained in 45.8 mg of C2H4? The molar mass of C2H4 is 28.05 g mol-1.
◦ 4.69 × 1023 C2H4 molecules
◦ 2.71 × 1020 C2H4 molecules
◦ 7.74 × 1026 C2H4 molecules
◦ 9.83 × 1020 C2H4 molecules
◦ 3.69 × 1023 C2H4 molecules
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by lracut11 on Nov 18, 2019

yotaSR5

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Reply #1 on: Nov 18, 2019
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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lracut11

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Reply 2 on: Nov 18, 2019
Gracias!

coreycathey

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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