9-05: Titration

In a titration, 10.0 mL of 0.0750 M HCl(aq) is exactly neutralized by 30.0 mL of KOH(aq) of unknown concentration. What is the concentration of the KOH(aq) solution?

• 0.0250 M

• 0.0750 M

• 0.225 M

• 0.333 M

Which volume of 0.600 M H₂SO₄(aq) exactly neutralizes 100. milliliters of 0.300 M Ba(OH)₂(aq)?

• 25.0 mL

• 50.0 mL

• 100. mL

• 200. mL

The laboratory process in which the volume of a solution of known concentration is used to determine the concentration of another solution is called

• distillation

• fermentation

• titration

• transmutation

What is the volume of 0.30 M NaOH(aq) needed to completely neutralize 15.0 milliliters of 0.80 M HCl(aq)?

• 3.6 mL

• 5.2 mL

• 30. mL

• 40. mL

The data collected from a laboratory titration are used to calculate the

• rate of a chemical reaction

• heat of a chemical reaction

• concentration of a solution

• boiling point of a solution

In performing a titration, a student adds three drops of phenolphthalein to a flask containing 25.00 milliliters of HCl(aq). Using a buret, the student slowly adds 0.150 M NaOH(aq) to the flask until one drop causes the indicator to turn light pink. The student determines that a total volume of 20.20 milliliters of NaOH(aq) was used in this titration.

Choose the correct numerical setup to calculate the molarity of the HCl(aq) used in this titration.

• (Mₐ)(20.20 mL) = (0.150 M)(25.00 mL)

• (Mₐ)(25.00 mL) = (0.150 M)(20.20 mL)

• (Mₐ)(25.00 mL) = (0150 M)(20.20 mL)

• (Mₐ)(0.150 mL) = (0.150 M)(20.20 mL)

Based on the equation

H₂SO₄(aq) + 2KOH(aq) → K₂SO₄(aq) + 2H₂O(l)

and the titration results, what is the concentration of the H₂SO₄(aq)?

• 0.12 M

• 0.16 M

• 0.24 M

• 0.96 M

What is the correct numerical setup for calculating the molarity of the sodium hydroxide solution?

• (0.10 M)(3.80−M₆(9.50)

• (0.10 M)(9.50 mL) = M₆(3.80 mL)

• (0.10 M)(9.50 mL) = M₆(9.50mL)

• (10 M)(9.50 mL) = M₆(3.80 mL)

How many milliliters of 0.600 M H₂SO₄ are required to exactly neutralize 100. milliliters of 0.300 M Ba(OH)₂?

• 25.0 mL

• 50.0 mL

• 100. mL

• 200. mL

A 3.0-milliliter sample of HNO₃ solution is exactly neutralized by 6.0 milliliters of 0.50 M KOH. What is the molarity of the HNO₃ sample?

• 1.0 M

• 0.50 M

• 3.0 M

• 1.5 M