Titration Quiz

What is the purpose of a titration in chemistry?

• To mix two solutions together

• To determine the concentration of an unknown solution

• To observe the color change of a solution

• To measure the pH level of a solution

Which piece of equipment is used to measure an exact volume of solution?

• Beaker

• Conical flask

• Pipette

• Burette

What is the concentration of the sodium hydroxide solution used in the experiment?

• 0.05 mol per decimeter cubed

• 0.2 mol per decimeter cubed

• 0.1 mol per decimeter cubed

• 1 mol per decimeter cubed

What is used to safely fill a pipette with solution?

• A dropper

• A pipette filler

• A syringe

• A funnel

What indicator is used in the titration between sodium hydroxide and sulfuric acid?

• Bromothymol blue

• Phenolphthalein

• Litmus

• Methyl orange

What is the correct way to read the volume from a burette?

• From the side of the burette

• From the bottom of the meniscus

• From the center of the meniscus

• From the top of the meniscus

How many moles of sodium hydroxide were initially used in the experiment?

• 0.25 moles

• 2.5 moles

• 0.025 moles

• 0.0025 moles

What is the final concentration of the sulfuric acid determined from the titration?

• 0.095 mol per decimeter cubed

• 0.2 mol per decimeter cubed

• 0.05 mol per decimeter cubed

• 0.1 mol per decimeter cubed

Why is it important to not blow out the last drop from the pipette?

• To avoid adding too much volume

• Because it's considered unsafe

• To prevent contamination

• The last drop is already accounted for in the pipette's calibration

What is the correct procedure if the volume of acid needed for neutralization is overshot during a titration?

• Use a different indicator

• Repeat the titration, adding the acid more slowly

• Adjust the concentration of the sodium hydroxide

• Change the volume of sodium hydroxide used