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Chemistry / General, Organic, and Biological Chemistry: Structures of Life 4 / Chapter 6 / Problem 50QP

General, Organic, and Biological Chemistry: Structures of Life | 4th Edition | ISBN: 9780321750891 | Authors: Karen C. Timberlake

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In the acetylene torch, acetylene gas (C2H2) burns in

Chapter 6, Problem 50QP

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QUESTION:

In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water.2C2H2(g) + 5O2(g) ? 4CO2(g) + 2H2O(g)a. How many moles of O2 are needed to react with 2.00 mol of C2H2?b. How many moles of CO2 are produced when 3.5 mol of C2H2 reacts?c. How many moles of C2H2 are required to produce 0.50 mol of H2O?d. How many moles of CO2 are produced from 0.100 mol of O2?

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QUESTION:

In the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water.2C2H2(g) + 5O2(g) ? 4CO2(g) + 2H2O(g)a. How many moles of O2 are needed to react with 2.00 mol of C2H2?b. How many moles of CO2 are produced when 3.5 mol of C2H2 reacts?c. How many moles of C2H2 are required to produce 0.50 mol of H2O?d. How many moles of CO2 are produced from 0.100 mol of O2?

ANSWER:

Problem 50QPIn the acetylene torch, acetylene gas (C2H2) burns in oxygen to produce carbon dioxide and water.2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g)a. How many moles of O2 are needed to react with 2.00 mol of C2H2b. How many moles of CO2 are produced when 3.5 mol of C2H2 reactsc. How many moles of C2H2 are required to produce 0.50 mol of H2Od. How many moles of CO2 are produced from 0.100 mol of O2Solution 50QP:Step 1: (a)Here, we are going to find out the moles of O2 are needed to react with 2.00 mol of C2H2.We know that2C2H2(g) + 5O2(g) 4CO2(g) + 2H2O(g)Thus,2.0 moles of C2H2(g) = 5.0 moles of O2 = 4.0 moles of CO2 = 2.0 moles of H2O = = 5.0 moles of O2Thus, 5.0 moles of O2 are needed to react with 2.00 mol of C2H2.________________

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