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Author Question: If a certain natural gas supply contains 2.13% helium by mass, what amount of the natural gas must ... (Read 34 times)

sdfghj

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on: Jul 8, 2021

Question 1

How much hydrogen (in liters at STP) is required to change 857 kg of diisobutylene to isooctane? Molar mass of diisobutylene is 112.2 grams.

CH3C(CH3)2CH=C(CH3)2 + H2→ CH3C(CH3)2CH2CH(CH3)2

◦ 15.4 L
◦ 1.71 × 105 L
◦ 8.55 × 104 L
◦ 3.42 × 105 L
◦ 30.8 L

Question 2

If a certain natural gas supply contains 2.13% helium by mass, what amount of the natural gas must be processed, at 96.2% efficiency of helium recovery, to produce sufficient helium to inflate 24 party balloons to a volume of 5.3 L each at an internal gas pressure of 1.25 atm and a temperature of 23.7 °C?
◦ 1.28 kg
◦ 1.18 kg
◦ 1.09 kg
◦ 0.82 kg
◦ 0.75 kg
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by sdfghj on Jul 8, 2021

dpost18

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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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sdfghj

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Reply 2 on: Jul 8, 2021
Excellent

tanna.moeller

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Reply 3 on: Yesterday
:D TYSM

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