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Material Type: Assignment; Class: General Chemistry II; Subject: Chemistry; University: Roane State Community College; Term: Unknown 1989;
Typology: Assignments
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Calculate the pH to the nearest 0.01 unit of a solution which is 0.015 M in NH 3 and 0.10 M in NH 4 Cl. The Kb for NH 3 is 1.8 x 10-5. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 8.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.025 M in CH 3 NH 2 and 0.15 M in CH 3 NH 3 Cl. The Kb for CH 3 NH 2 is 2.29 x 10-11. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 2.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.050 M in (CH 3 ) 3 N and 0.10 M in (CH 3 ) 3 NHCl. The Kb for (CH 3 ) 3 N is 1.59 x 10-10. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 3.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.35 M in HONH 2 and 0.025 M in HONH 3 Cl. The Kb for HONH 2 is 3.2 x 10-7. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 8.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.0025 M in C 6 H 5 NH 2 and 0.035 M in C 6 H 5 NH 3 Cl. The Kb for C 6 H 5 NH 2 is 6.46 x 10-6. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 7.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.075 M in (CH 3 ) 2 NH and 0.20 M in (CH 3 ) 2 NH 2 Cl. The Kb for (CH 3 ) 2 NH is 2.0 x 10-11. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 2.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.0085 M in NH 3 and 0.055 M in NH 4 Cl. The Kb for NH 3 is 1.8 x 10-5. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 8.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.15 M in C 5 H 4 N and 0.025 M in C 5 H 4 NHCl. The Kb for C 5 H 4 N is 7.59 x 10-12. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 3.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.0085 M in C 6 H 6 NH 2 and 0.045 M in C 6 H 6 NH 3 Cl. The Kb for C 6 H 6 NH 2 is 6.46 x 10-6. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 8.
Calculate the pH to the nearest 0.01 unit of a solution which is 0.090 M in HONH 2 and 0.010 M in HONH 3 Cl. The Kb for HONH 2 is 3.2 x 10-7. Write the Brønsted-Lowery reaction and the equilibrium expression.
Ans = 8.