The decomposition of gaseous dimethyl ether at ordinary pressures is first-order. Its half-life is 25.0 minutes at

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The decomposition of gaseous dimethyl ether at ordinary pressures is first-order. Its half-life is 25.0 minutes at 500°C:

(a) Starting with 8.00 g of dimethyl ether, what mass remains (in grams) after 125 minutes and after 145 minutes?
(b) Calculate the time in minutes required to decrease 7.60ng (nanograms) to 2.25 ng.
(c) What fraction of the original dimethyl ether remains after 150 minutes?

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To solve these problems well use the concept of firstorder reactions and the halflife of the reaction The halflife t12 for a firstorder reaction can b...View the full answer

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Related Book For book-img-for-question

Chemistry And Chemical Reactivity

ISBN: 9780357001172

10th Edition

Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

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Question Posted: Oct 29, 2023 06:03 AM

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The decomposition of gaseous dimethyl ether at ordinary pressures is first-order. Its half-life is 25.0 minutes at

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To solve these problems well use the concept of firstorder reactions and the halflife of the reaction The halflife t12 for a firstorder reaction can b...View the full answer

Chemistry And Chemical Reactivity

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