Pre-Lab: Unknown HCl Solution

What is molarity?

The ratio of the numbers of moles of a solute per liter of the total solution

What is the solute?

The compound that has dissolved in the other compound

What is the solvent?

The compound that the other compound has dissolved in

What is the mass percent?

The ratio of one substance’s mass to the mass of the total solution times 100

What is an indicator?

A chemical that marks the end point of any reaction

When do we stop adding NaOH?

At the first sign of pink in the entire solution

What does a burette do?

It measures the volume of liquid that has been taken out of the burette and added to something else

What is the volume of titrant added?

The volume given on the burette

How many decimal places is the burette accurate to?

One more than marked with the graduated lines

How do we add solution to the burette?

Take out of clamp, have below eye level, pour into funnel a little bit, put into clamp, allow to drip into pouring beaker a little bit, take out and fill rest of the way

How much water do you add to the flask?

Enough to cover the stir bar