quiz 2: toolbox to solubility constant
The molecular weight of CaCl2 is 110.98 g/mol. In order to make up 500. mL of a 0.500 M solution, you need:
27.7g
Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2 Pb+2(aq) + 2Cl -(aq). If the value of Ksp was determined to be only 1.2 x 10-2:
The solution is unsaturated.
Electricity is conducted through a solution containing an electrolyte by:
ions
Determine the molecular weight for Mg(NO3)2.
148.33 g
When one mole of sodium chloride dissociates in water, it produces:
2 moles of ions
Select all the items on the following list that are ions.
PO4-3 HCO3- Al+3 Hg2+2
If solid NaCl is added to a saturated water solution of PbCl2 at 20o C, a precipitate is formed. How would this affect the value of the Ksp for [Pb2+][Cl-] in solution?
The Ksp remains the same.
Balance the reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coefficient is "1." 2AgNO₃ + MgCl₂ 2AgCl + Mg(NO₃)₂
blank blank
As the concentration of a given salt solution increases, the conductivity of the solution:
increases
_____ occurs when the product of the ion concentrations exceeds the Ksp.
precipitation
If a crystal of KNO3 is added to a saturated water solution of KNO3 at 20°C, the added crystal will
remain apparently unchanged.
The concentration of the particles in the solid phase always _____.
remains the same regardless of how much quantity is present
How does the polarity of the solute affect how well a solvent will dissolve?
similar polarity makes the solvent more likely to dissolve
Which of the following choices is not a factor in the amount of electrical conductivity of a solution?
size of container
Select all that apply. When is Ksp determined for a system?
when equilibrium is established when the two phase system is saturated