Chemistry Lab 8

Typically, an _____________ will create __________________ ions  in a solution.

acid, positive

The arrow is pointing to an _______________ .

base

True or False

When HCL dissociates, there will be an even number of H+ and Cl- ions.

true

What is located inside this tube?

base and indicator

2M is ______________ more concentrated than 0.1M.

20

 

If the analyte is colorless, follow these steps (in which order)?

A. Swirl, rinse, add a drop, record

B. Record, add a drop, rinse, swirl

C. Add a drop, rinse, swirl, record

D. Add a drop, swirl, rinse, record

C

What is represented here in this image?

indicator

What is the purpose of titration?

A. To determine the weight of an unknown solution

B. To determine the concentration of a known solution

C. To determine the weight of an unknown solution

D. To determine the concentration of an unknown solution

D

What is the molarity of the Hydrochloric acid used in this titration?

1.013 M HCl

What is the purpose of this step?

 

A. To open the pipette

B. To read the measurement

C. To locate and abolish air bubbles

D. To open the stopcock

C

When this solution turns pink permanently, this signifies which of the following:

A. We know that we have equal moles of sodium acid and hydrochloric hydroxide

B. We know that we have unequal moles of sodium acid and hydrochloric hydroxide

C. We know that we have unequal moles of sodium hydroxide and hydrochloric acid

D. We know that we have equal moles of sodium hydroxide and hydrochloric acid

D

We are tying to measure this concentration to how many significant figures?

3

The lowest number on the burette is located on the _________.

top

What is the potential volume of this burette?

50mL

This is ________________________ which is solid when it is taken from its container but absorbs moisture from the air almost immediately.

Sodium hydroxide