Chemistry ACP Review Pt. 2

Water is a molecule with slightly positive hydrogen atoms and a slightly negative oxygen atom. This unique arrangement gives water its _

• A. chemical stability

• B. hydrophobic properties

• C. nonpolarity

• D. polarity

Water is an extremely good solvent because it is a polar molecule. Which of these statements makes polar molecules good solvents?

• A. They are repelled from other molecules by their magnetic forces

• B. They readily react with nonpolar molecules

• C. They produce a strong attraction due to their positive and negative ends

• D. They create a stronger gravitational attraction than non-polar molecules

Which of the following compounds is very soluble in water?

• A. Sn(CrO₄)₂

• B. SrSO₄

• C. Ca(OH)₂

• D. PbCl₂

Which product in the equation is a precipitate?

AlCl₃ (aq) + K₃PO₄ (aq) → 3KCl (?) + AlPO₄ (?)

• A. Both KCl and AlPO₄

• B. KCl

• C. Neither KCl or AlPO₄

• D. AlPO₄

Molarity = moles of solute

liter of solution

M = mol

L

Which of the following is the correct molarity solution equations?

• A. Molarity = mol/liter

  Liter = mol/molarity

  mol = molarity x liter

• B. Molarity = mol x liter

  Liter = molarity/mol

  mol = molarity/liter

• C. Molarity = liter/mol

  Liter = molarity/mol

  mol = molarity x liter

• D. Molarity = mol/liter

  Liter = molarity/mol

  mol = molarity x liter

How should you manipulate the dilution equation below to solve for the molarity of the first solution?

V₁M₁ = V₂M₂

• A. M₁ = V₁

  V₂M₂

• B. M₁ = M₂ x V₁ x V₂

• C. V₁ = V₂M₂

  M₁

• D. M₁ = V₂M₂

  V₁

Given the following pOH, calculate the pH for the solution.

pOH = 5.19

• A. pH = - 8. 81, acid

• B. pH = 8.81, base

• C. pH = 8.81, acid

• D. pH = - 8.81, base

Which of the following is NOT a characteristic of an acid?

• A. H⁺ (hydrogen ion)

• B. OH⁻ (hydroxide ion)

• C. H₃O⁺ (hydronium ion)

• D. pH = ⁻ Log [H⁺]

Which of the following describes a solution containing an electrolyte?

• A. The solute particles are so firmly bonded that they do not break apart.

• B. The solute particles dissociates into ions.

• C. It is unstable, and all the solute will precipitate if the solution is disturbed.

• D. It cannot contain any more solute particles.

Which of the following solutions would be considered electrolyte solutions?

• A. 2, 4, 5

• B. 1, 2, 4,

• C. 1, 3

• D. 2, 5