Chemistry Titration Quiz

What is the primary purpose of a titration in chemistry?

• To measure the pH of a solution

• To mix two chemicals

• To observe color changes in reactions

• To determine the concentration of an unknown solution

Which equipment is specifically designed to measure exactly 25 cm³ of a solution?

• Beaker

• Burette

• Flask

• Pipette

What is the correct way to attach a safety filler to a pipette?

• Hold the pipette at the top and twist the filler on gently

• Hold the pipette in the middle and jam the filler on

• Hold the pipette at the bottom and push the filler

• Hold the pipette at the top and apply strong pressure

Why is it important not to fill a burette above eye-level?

• To maintain the purity of the chemical

• To prevent chemical spills on the face

• To avoid reading errors

• To prevent the burette from breaking

What indicates the endpoint of a titration when using methyl orange?

• The solution bubbles

• The solution turns pink and stays pink upon swirling

• The solution turns clear

• The solution turns blue

How many accurate titrations are recommended after a rough titration?

• Four

• Three

• At least two

• At least one

What is the first step in calculating the concentration of sulfuric acid after titration?

• Balance the chemical equation

• Convert all measurements to moles

• Determine the pH of the solution

• Measure the volume of acid used

According to the balanced equation, what is the mole ratio of sodium hydroxide to sulfuric acid?

• 1:1

• 3:1

• 1:2

• 2:1

What volume of sulfuric acid was found to be needed to neutralize 25 cm³ of sodium hydroxide in the accurate titration?

• 13.1 cm³

• 14.3 cm³

• 15.0 cm³

• 12.0 cm³

What was the final calculated concentration of the sulfuric acid?

• 0.2 M

• 0.1 M

• 0.05 M

• 0.095 M