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Chemistry Solutions Library

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36,630 solutions

Spontaneous Reaction

Q. Above what temperature does the following reaction become spontaneous? FeO (s) + CO (g) CO2 (g) + Fe (g)                             ∆H = – 11.0 k...

Solved • Feb 2, 2016
First Law of Thermodynamics

Q. Which of the following statements is TRUE?   a. State functions are not dependent on the path taken to reach a particular state. b. The change i...

Solved • Feb 2, 2016
Ksp

Q. Which of the following compounds will have the highest molar solubility in pure water?   A. NiS           Ksp = 3.00x10 -20 B. PbS          Ksp ...

Solved • Feb 2, 2016
Ksp

Q. In which of the following solutions would PbBr2 be expected to be the least soluble at a given temperature.   A. 0.1M CaBr2 B. 0.1M HBr C. 0.1M...

Solved • Feb 2, 2016
Buffer

Q. Which of the following acids and their conjugate base would form a buffer with a pH of 8.10?   A. HClO3 pKa= 7.54 B. H2SO3 pKa= 1.77 C. HC2H3O2...

Solved • Feb 2, 2016
pH and pOH

Q. What is the hydroxide concentration in a solution with a pH of 6.34?   A. 2.19x10-6 B. 2.19x10-8 C. 3.45x10-4 D. 3.45x10-6 E. 6.26x10-8

Solved • Feb 2, 2016
pH and pOH

Q. At 0 degrees Celsius, the ion product constant of water is 1.2x10-15. The pH of pure water at this temperature is:   A. 6.88 B. 7.00 C. 7.46 D...

Solved • Feb 2, 2016