Titration calculations

What is the concentration of a HCl solution if 24.7 cm³ of HCl are completely neutrilized by 35.8 cm³ of a 0.25 M NaOH solution?

• 0.362 M

• 3.62 M

• 0.172 M

• 35.4 M

Tags

NGSS.HS-PS1-7

What mass of KHP will be completely neutrilized by 32.57 mL 0.175 M standard NaOH solution? The Molar Mass of KPH is 204.22 g/mol.

• 23.28 g KHP

• 1.164 g KHP

• 11.64 g KHP

• 2.328 g KHP

Calculate the volume of a 0.15 M Ba(OH)2 solution required to completely neutralize 45 mL of a 0.29 M HNO3 solution.

• 43.5 cm³

• 87 cm³

• 23.3 cm³

• 51.9 cm³

If it takes 25 mL of 0.05 M HCl to neutralize 345 mL of NaOH solutions, what is the concentration of the NaOH solution?

• 0.004 M

• 276 M

• 0.036 M

What is the equivalence point of a titration?

• Where the amount of acid and base are balanced according to the equation

• Where there is no base

• At the end

Tags

NGSS.HS-PS1-7

The reaction of perchloric acid (HClO₄) with lithium hydroxide (LiOH) is described by the equation

HClO₄ + LiOH → LiClO₄ + H₂O

Suppose 100 mL of perchloric acid is neutralized by exactly 50.0 mL of 1.0 M of lithium hydroxide. What is the concentration of the perchloric acid?

• 0.5 M

• 50 M

• 2.0 M

• 1.0 M

The reaction of sulfuric acid (H₂SO₄) with Sodium hydroxide (NaOH) is described by the equation:

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

Suppose 50 mL of NaOH with unknown concentration is placed in a flask with bromthymol blue indicator. A solution of 0.20 M H₂SO₄ is dripped into the NaOH solution. After exactly 25.0 mL of H₂SO₄ is added, the indicator changes from blue to yellow. What is the concentration of the KOH?

• 0.20 M

• 4.0 M

• 2.5 M

• 0.4 M

The reaction of hydrochloric acid (HCl) with ammonia (NH₃) is described by the equation:

HCl + NH₃ → NH₄Cl

A student is titrating 100.0 mL of 0.10 M NH₃ with 0.5 M HCl. How much hydrochloric acid must be added to react completely with the ammonia?

• 20.0 cm³

• 500.0 cm³

• 100.0 cm³

• 5.0 cm³