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Question 11.When a solution of a given volume has a maximum amount of a solid dissolved in it, it is said to be _____.
Calculate the concentration of calcium in a solution of calcium fluoride (CaF2) in pure water:
Ksp = 1.46 x 10^-10
Question 33.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?
In the reaction below, what will happen if you decrease the concentration of A?
A + B ---- C + D
In the reaction below, which of the following occurs after the pressure is increased?
A(g) + B(g) ---- 2C(g) + D(g)
Question 66.In chemistry, what does Le Chatelier's principle explains about an equilibrium?
Question 77.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 88.Which of the following is true about buffers?
Question 99.The _____ is useful in determining the direction in which the reaction is moving toward or away from chemical equilibrium.
Question 1010.The equilibrium constant is a value that relates the ratio of the concentrations of _____ once the reaction has reached chemical equilibrium.
Question 1111.What is the pH of a 1.34 M solution of hydrofluoric acid (HF) with a Ka of 3.55 × 10^-4?
Question 1212.The concentration of H ions in a solution can be used to calculate its:
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?
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
Question 1515.Which of the following is true about chemical equilibrium?
Question 1616.In which of the following scenarios will a precipitate form?
Question 1717.The common ion effect states that the addition of an ion common to two solutes causes _____.
Question 1818.When are there more ions in the solution than in equilibrium?
Question 1919.Which of the following affects the equilibrium of a chemical reaction?
Question 2020.Which of the following compounds is the least soluble given the Ksp values?
The reaction below is exothermic. Which of the following will occur if the temperature increases?
A(g) + B(g) ---- C(g) + D(g)
Question 2222.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 2323.The ability of a solid to be dissolved in a given volume of a solvent at a given temperature is known as _____.
Question 2424.What will happen if a chemical reaction system is stressed by an increase in the concentration of reactants?
Question 2525.What is a titration curve?
Question 2626.What would the proper axis labels be for a titration curve in which a strong base was titrated with a strong acid?
Question 2727.When the reaction quotient is less than the equilibrium constant, in which direction will the reaction proceed?
Question 2828.What is chemical equilibrium?
Question 2929.What is a common ion?
Question 3030.What is the Ka value for a weak acid with concentration of 1 M, and hydronium ion concentration of 0.0050 M?
Equilibrium Chapter Exam Instructions
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