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Chemistry / Chemistry: The Central Science 13 / Chapter 17 / Problem 17.112

Chemistry: The Central Science | 13th Edition | ISBN: 9780321910417 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward; Matthew E. Stoltzfus

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A sample of 7.5 L of NH3 gas at 22 C and 735 torr is

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QUESTION:

A sample of 7.5 L of NH3 gas at 22 C and 735 torr is bubbled into a 0.50-L solution of 0.40 M HCl. Assuming that all the NH3 dissolves and that the volume of the solution remains 0.50 L, calculate the pH of the resulting solution

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QUESTION:

A sample of 7.5 L of NH3 gas at 22 C and 735 torr is bubbled into a 0.50-L solution of 0.40 M HCl. Assuming that all the NH3 dissolves and that the volume of the solution remains 0.50 L, calculate the pH of the resulting solution

ANSWER:

Problem 17.112A sample of 7.5 L of NH3gas at 22 °C and 735 torr is bubbled into a 0.50-L solution of 0.40 MHCl. Assuming that all the NH dissolves and that the volume of the solution remains 0.50 L, 3calculate the pH of the resulting solution Step-by-step solution Step 1 of 4 To calculate the moles of NH gas-: 3From ideal gas equationPV = nRT PVn = RT (735 torr×1a)(7.5 L) 760 torr= 0.0821 L.atm/mol.K×295 K (0.967 atm)(7.5 L)= (0.0821 L.atm/mol.K)(295 K)= 0.299 moln = 0.30 mol

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