Percent comp. & Naming Acids (Review)

Find the percent composition of Cu₂S?

• %Cu= 67.987 %S= 32.013
• %Cu= 79.854   %S= 20.145
• %Cu= 35.946   %S= 64.054

What percentage of the total atomic mass of carbon monoxide is composed of carbon?

• 29%

• 43%

• 57%

• 73%

What percentage of the total atomic mass of magnesium bromide is composed of magnesium?

• 13%

• 43%

• 63%

• 87%

Calculate the percent by mass of water in the following hydrate: Iron (III) chloride hexahydrate

• 60.01%

• 39.99%

• 34.75%

• 6.65%

When naming binary acids, the ending always changes to:

• -ate

• -ite

• -ic

• -ous

When naming oxyacids, change "-ite" to:

• -ate

• -ic

• -ous

• -ite

What is the formula for phosphorous acid?

• H₃PO₄
• H₂PO₄
• H₃P
• H₃PO₃

What is the formula for nitric acid?

• HNO₂
• HNO₃
• HNO₄
• H₂NO₃

What is the name of FeSO₄?

• Iron Sulfite
• Iron (II) Sulfite
• Iron(IV) Sulfate
• Iron (II) Sulfate

Name this acid with the formula HF

• hydrofluoric acid

• hypofluoric acid

• hydrogen fluorine acid

• fluoric acid