Gravimetric Analysis Quiz

What is a key component involved in gravimetric analysis?

• A precipitate

• A solution

• A gas

• A solid metal

In the classic problem, what is the charge of the unknown metal cation?

• 0

• -1

• +2

• +1

What is the formula of the metal bromide used in the problem?

• MBr3

• M2Br

• MBr

• MBr2

How many moles of silver bromide precipitate were formed?

• 0.1 moles

• 0.01 moles

• 1 mole

• 0.001 moles

Which metal bromide was identified as the unknown metal?

• Sodium bromide

• Lithium bromide

• Potassium bromide

• Nickel bromide

What is the molar mass of potassium chloride?

• 74.6 g/mol

• 58.5 g/mol

• 100 g/mol

• 50 g/mol

What is the percent chloride in lead(II) chloride?

• 30%

• 50%

• 25.5%

• 47.6%

How much potassium chloride was found in the mixture?

• 2.265 g

• 1.07 g

• 3.5 g

• 4 g

What is the percent by mass of potassium chloride in the mixture?

• 10%

• 30%

• 50%

• 21.6%

What is the percent by mass of calcium nitrate in the mixture?

• 50%

• 30%

• 78.4%

• 21.6%