Answer number 3 and 4 1. Chromium (III) oxide reacts with hydrogen sulfide gas to form chromium (III) sulfide and water in the given reaction:Cr.0, + H,S ==required?Cr,S, + H.O. To produce 421-g of Cr.S., how many (a) moles of Cr,0, and (b) grams of Cr,0, are2. In the given reaction: ALS, + H.0 ==-> AIOH), + H.S, 158-g of aluminum sulfide reacts with 131-g of water.(a) Which is the limiting reactant?(b) Which is the excess reactant?(c) How many grams of hydrosulfuric acid is formed?(d) What mass of excess reactant remained after the reaction?3. When 20.5-g of methane and 45.0-g of chlorine gas undergo a reaction that has 75.0% yield, what mass (g) of chloromethane(CH,CI) forms? Hydrogen chloride is also formed based on the reaction: CH, + Cl, ===→ CH,CI + HCI4.Two successive reactions, A ==> Band B ===> C, have yields 93% and 68%, respectively. What is the overall percent yieldfor the conversion of A to C?

Answered: Image /qna-images/answer/4b947931-a892-4bf9-afc3-7687d3b41a77.jpg

3. When 20.5-g of methane and 45.0-g of chlorine gas undergo a reaction that has 75.0% yield, what mass (g) of chloromethane (CH,CI) forms? Hydrogen chioride is also formed based on the reaction: CH, + C, > CH,CI + HCI 4. Two successive reactions, A ==> B and B ===> C, have yields 93% and 68%, respectively. What is the overall percent yield for the conversion of A to C?

3. When 20.5-g of methane and 45.0-g of chlorine gas undergo a reaction that has 75.0% yield, what mass (g) of chloromethane (CH,CI) forms? Hydrogen chioride is also formed based on the reaction: CH, + C, > CH,CI + HCI 4. Two successive reactions, A ==> B and B ===> C, have yields 93% and 68%, respectively. What is the overall percent yield for the conversion of A to C?

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 124E: DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: In a...

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