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Question 11.Titrations are used to analyze properties of an unknown solution. In a titration, the equivalence point is the point at which _____ have been added together to create a neutral solution.
Question 22.The equilibrium constant is a value that relates the ratio of the concentrations of _____ once the reaction has reached chemical equilibrium.
The reaction below is exothermic. Which of the following will occur if the temperature increases?
A(g) + B(g) ---- C(g) + D(g)
Question 44.The _____ is useful in determining the direction in which the reaction is moving toward or away from chemical equilibrium.
Question 55.Which of the following is true about buffers?
Question 66.In which of the following scenarios will a precipitate form?
What is the equilibrium constant for the reaction when 0.1908 moles of CO2 react with 0.0908 moles of H2 to produce 0.0092 moles of CO and 0.0092 moles of H2O?
CO2 + H2 -- > CO + H2O
In the reaction below, which of the following occurs after the pressure is increased?
A(g) + B(g) ---- 2C(g) + D(g)
Question 99.Which of the following compounds is the least soluble given the Ksp values?
Calculate the concentration of calcium in a solution of calcium fluoride (CaF2) in pure water:
Ksp = 1.46 x 10^-10
Consider the following reaction:
2 NH3(g) N2(g) + 3 H2(g) Kc = 0.0076
If 3.00 moles NH3 react to produce 2.00 moles of N2, and 5.00 moles of H2, in a 5.00 L container, what is the equilibrium concentration for each species present in the equilibrium mixture?
Question 1212.The common ion effect states that the addition of an ion common to two solutes causes _____.
Question 1313.Which of the following affects the equilibrium of a chemical reaction?
Question 1414.What is the concentration of tin (Sn) in a solution of tin(II) hydroxide (Sn(OH)2) in pure water? Ksp = 5.45 x 10^-27?
Question 1515.The concentration of H ions in a solution can be used to calculate its:
Question 1616.A certain amount of Sodium hydroxide (NaOH) is dissolved in water. If the product of Na+ and OH- is equal to the Ksp for NaOH, what does this tell us about the solution?
Question 1717.When are there more ions in the solution than in equilibrium?
Question 1818.When a solution of a given volume has a maximum amount of a solid dissolved in it, it is said to be _____.
In the reaction below, what will happen if you decrease the concentration of A?
A + B ---- C + D
Question 2020.The ability of a solid to be dissolved in a given volume of a solvent at a given temperature is known as _____.
Question 2121.What is the pH of a 1.34 M solution of hydrofluoric acid (HF) with a Ka of 3.55 × 10^-4?
Question 2222.In chemistry, what does Le Chatelier's principle explains about an equilibrium?
Question 2323.Which of the following is true about chemical equilibrium?
Equilibrium Chapter Exam Instructions
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