Titration Calculations

If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution, what is the concentration of HCl?

• 0.043 M

• 23.148 M

• 0.231 M

How many milliliters of 0.360 M H₂SO₄ are required to neutralize 25 mL of 0.1 M Ba(OH)₂?

• 6.944 mL

• 0.144 mL

• 0.069 mL

How many mL of 10.8 M HCl are required to make 100.0 mL of 3.00 M acid?
(c₁V₁ = c₂V₂)

Hint: remember to use the correct number of significant figures.

• 27.8 mL

• 27.78 mL

• 2.8 mL

• 278 mL

Which of the following is NOT a property of primary standards?

• They are stable (do not react with gases and water).

• They are white, crystalline powders.

• They are pure (which means that the molar mass used in calculations is valid).

• They are inexpensive.

What volume of water must be added to 10 mL of 2.5 M H₂SO₄ solution to create a diluted solution with a concentration of 1 M.

• 25 mL

• 15 mL

• 10 mL

• 5 mL

The equivalence point is when acids and bases are added in the correct mole ratios.

• True

• False

All indicators will produce an end point close to the equivalence point for all combinations of acid/base titrations.

• True

• False

During a practical to determine the concentration of an unknown solution, the following titres were obtained: 21.45 mL, 20.67 mL, 20.62 mL & 20.71 mL. The average titre is:

• 20.86 mL

• 20.67

What volume of sulfuric acid was neutralised?

• 15 mL

• 30 mL

• 60 mL

What is the concentration of the nitric acid solution?

• 0.133 M

• 0.0667 M

• 0.0333 M

Tags

NGSS.HS-PS1-5