* 00 3. Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr,03(s) + 3H,S(g) Cr,S3(s) + 3H20(1) To produce 775 g of Cr,S (a) how many moles of Cr20, are required? mol (b) how many grams of Cr,03 are required? 5. 9. 7. 8. y O

* 00 3. Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water: Cr,03(s) + 3H,S(g) Cr,S3(s) + 3H20(1) To produce 775 g of Cr,S (a) how many moles of Cr20, are required? mol (b) how many grams of Cr,03 are required? 5. 9. 7. 8. y O

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.12PAE: 4.12 In petroleum refining, hydrocarbons are often manipulated by reacting them with H2(g). If...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

* 00
3.
Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and
water:
Cr,03(s) + 3H,S(g)
Cr,S3(s) + 3H20(1)
To produce 775 g of Cr,S
(a) how many moles of Cr20, are required?
mol
(b) how many grams of Cr,03 are required?
5.
9.
7.
8.
y
O

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