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Why in a concentrated solution, a strong electrolyte shows deviations from Debye-Huckle- Onsagar equation?
What volume of gold would be equal in mass to a piece of copper with a volume of 140.0 mL? The density of gold is 19.3 g/mL; density of copper is 8.96 g/mL
What is the solubility in pure water of Ba(IO3)2 in moles per liter at 25 ?C? [Ksp (25 ?C) = 6.0 x 10-10]
The equilibrium constant will decrease. C. The reaction will shift to the left in the direction of reactants. D. The equilibrium constant will increase. E. The reaction will shift to the right in the direction of products.
Problem- You need to prepare 100.0 mL of a pH=4.00 buffer solution using 0.100 M benzoic acid (pKa = 4.20) and 0.220 M sodium benzoate. How much of each solution should be mixed to prepare this buffer
The first-order reaction for Hydorgen peroxide decomposing to H20 and O2 (aq). The rate constant at 25 C is 7.40 x 10^-4/second. Calculate the volume of O2 obtained form the decomposition reaction of 1 mol hydrogen peroxide at 25 C and 740 mmHg af..
The compound AB is in equilibrium with A+ as well as B- in a specific solvent at a given temperature. If the equilibrium constant as a value of 10 and [A+] is doubled in a solution of AB, what would happen to the values of each of the following
A solution contains 1 x 10-3 M Fe2+ and 2 x 10-10 M Fe3+. As the pH of the solution is raised, which iron hydroxide will precipitate first (i.e., ferrous hydroxide, Fe(OH)2(s) or ferric hydroxide, Fe(OH)3(s)). At what pH will this occur?
A couple of drops of water were accidentally placed on the properly folded filter paper before its mass was measured.
A reaction with a low enthalpy of reaction value is not spontaneous at low temperature but becomes spontaneous at high temperature.
Compute pH of a solution that is 0.210 M in nitrous acid (HNO2) and 0.290M in Potassium nitrate(KNO2). Define the acid dissociation constant of nitrous acid is 4.5x10-4
Explain why alcl3 has a molar heat capacity that is approximately 4 times the molar heat capacity of a metallic crystal.
Describe your results for the melting point of acetamide. Were your results consistent? What was the range of values?
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