Solutions + Acids and Bases Test

The closer the pH of a solution gets to __ , the more ___ it is.

•  7, neutral

• 14, acidic

• 7, acidic

• 0, basic

Which substance would be an acid in an aqueous solution?

• KF

• KOH

• HF

• LiH

Which of these would dissolve well?

• Ammonia (polar) in water.

• Sulfur dioxide (polar) in oil.

• Nitrogen (nonpolar) in water.

• Magnesium nitrate (ionic) in oil.

If 0.50 L of a 12 M solution is diluted to 1.0 L, the molarity of the new solution is

• 2.4 M

• 6.0 M

• 12 M

• 24 M

Which of these is the strongest acid?

• H₃PO₄

  K_a = 7.1 x 10^-3

• HF

  K_a = 6.6 x 10^-4

• H₂S

  K_a = 1.1 x 10^-7

• HClO

  K_a = 2.9 x 10^-8

Which of the following, if placed in the beaker shown in the diagram,

      would cause the lamp bulb to glow brightly?

• CH₃OH (l)

• CH₃OH (aq)

• NH₃ (aq)

• NaOH (aq)

Which substance forms a supersaturated solution when 60. gram of it are dissolved in 100. grams of H₂O at 10.^oC? (You can find the saturation curve in Google Classroom, Solutions topic)

• KNO₃

• KI

•  NH₃

• NaNO₃

Tags

NGSS.MS-PS1-2

What volume of a 0.5 M solution must be diluted to produce 2000 mL of a 0.002 M solution?

• 0.125 mL

• 2 mL

• 8 mL

• 5000 mL

What is the total number of grams of KCl needed to saturate exactly 100 grams of water at 10^oC? (saturation curve can be found in Google Classroom, Saturation topic)

• 20.0g

• 23.3g

• 26.7g

• 30.0g

Which of the following is true?

• Mg(NO₃)₂ is insoluble.

• MgCrO₄ is insoluble.

• Mg(ClO₄)₂ is insoluble.

• MgI₂ is insoluble.