A sample of 'raw' natural gas comes out of the ground with, in molar terms, the following composition: 85.0% methane, 3.4% carbon dioxide, 7.7% ethane and 3.9% propane. As part of the purification of methane for distribution, the latter two hydrocarbons are captured for another use. If a million litres of raw gas at STP is processed per day, what would be the combined daily mass of ethane and propane available?

A sample of 'raw' natural gas comes out of the ground with, in molar terms, the following composition: 85.0% methane, 3.4% carbon dioxide, 7.7% ethane and 3.9% propane. As part of the purification of methane for distribution, the latter two hydrocarbons are captured for another use. If a million litres of raw gas at STP is processed per day, what would be the combined daily mass of ethane and propane available?

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter5: Gases

Section: Chapter Questions

Problem 5.4PAE: How does hydraulic fracturing differ from previously used techniques for the recovery of natural gas...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

1. A sample of 'raw' natural gas comes out
of the ground with, in molar terms, the
following composition: 85.0% methane,
3.4% carbon dioxide, 7.7% ethane and
3.9% propane. As part of the purification
of methane for distribution, the latter
two hydrocarbons are captured for
another use. If a million litres of raw gas
at STP is processed per day, what would
be the combined daily mass of ethane
and propane available?
a. 1.16 x 105 g
b.
2.3 Tonnes
4.46 x 104 g
С.
d. 4.0 Tonnes

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