Qualitative analysis is the lab technique used to

Question 1 options:

1)	remove ions from solution
2)	determine the presence of certain ions in solution
3)	find the concentration of ions in solution
4)	form ionic bonds in solids
5)	maximize the concentration of ions in solution

Question 2 (5 points)

When testing for silver (I) ions, one should add _____ to the unknown water sample and look for a ______ precipitate.

Question 2 options:

1)	KSCN, red
2)	DMG, red-pink
3)	NaCl, white
4)	H2SO4, white
5)	NH4, blue

Question 3 (5 points)

A reference solution is used to:

Question 3 options:

1)	dilute lab results for readability
2)	increase precision in lab technique
3)	compare lab results with known results
4)	identify ions that do not form precipitates
5)	calculate percent yield of results

Question 4 (5 points)

Using the solubility rules in your textbook, propose a compound that would be a good test for the presence of lead (II) ions.

Question 4 options:

1)	mercury sulfide
2)	sodium sulfate
3)	potassium nitrate
4)	aluminum hydroxide

Question 5 (5 points)

When barium nitrate reacts with sulfuric acid, a white precipitate appears. The formula for this compound formed is:

Question 5 options:

	BaCl2
	Ba(NO3)2
	BaSO4
	H2SO4