C11 Solutions 6: Titrations

The tube used to contain the liquid being dispensed is called the

• Titrant

• Burette

• Flask

• Thingy

The divisions in the burette are placed at ___ intervals

• 10 mL

• 1 mL

• 0.1 mL

• 0.01 mL

When the valve is open, the bar is

• Aligned with the burette

• At 90 degrees to the burette

• At 45 degrees to the burette

The equivalence point is

• When there is an observable change in the flask

• When there is exactly the mole ratio of the acid and base in the flask

• When you have added all the titrant from the burette

• When the color change in the flask is temporary

The endpoint is

• When there is an observable change in the flask

• When there is exactly the mole ratio of the acid and base in the flask

• When you have added all the titrant from the burette

• When the color change in the flask is temporary

What should you do to increase the accuracy and precision of your titration experiment?

• Repeat it 3 times

• Pour the liquids quickly the entire time

• Measure from the top of the meniscus

• All of the above

The reading of liquid in the tube is

• 25

• 24

• 26

• 20

True or false: with the right indicator, the equivalence and endpoint are the same

• True

• False

When a titration first starts, the pH

• Does not change

• Rises slowly

• Rises quickly

Which indicator would be good for an equivalence point of pH 7

• Methyl red

• Bromothymol blue

• Thymol blue

• Phenolphtalein