CHEM #5 Homework (2)

CHEM #5 Homework (2) - Module 5 EOC Assignment Part2 Due by...

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Module 5 EOC Assignment – Part2 Due by 3/31 Chapter 18 - 25, 29, 47, 55, 57 Chpt18 #25 (1) Provide ALL of the given information. Include constants, density, conversion factors, etc. 36.78mL of 0.0105 M HCl Titration of 25.0 mL of aqueous ammonia (1) State the goal of the problem. (a) What was the concentration of NH 3 in the original ammonia solution (b) What are the concentrations of H 3 O + , OH - , and NH 4 + (c) What is the pH of the solution at the equivalence point (1) List possible equations that may be used pH = -log [H 3 O] (4) Solve the problem and explain the reason for each step of multiplication, division, addition, or subtraction. (a) (0.03678 L)(0.0105 M HCl) = 3.86 x 10 -4 (b) NH 4 + (aq) + H 2 O (l) NH 3 (aq) + H 3 O + (aq) (c) pH = -log (1.9 x 10 -6 ) = 5.73 (1) Explain why your answer makes physical and mathematical sense.
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Module 5 EOC Assignment – Part2 Due by 3/31 Chapter 18 - 25, 29, 47, 55, 57 Chpt18 #29 (1) Provide ALL of the given information. Include constants, density, conversion factors, etc. 25mL of 0.10 M NH 3 with 0.10 HCl (1) State the goal of the problem. (a) What is the pH of the NH
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CHEM #5 Homework (2) - Module 5 EOC Assignment Part2 Due by...

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