Free Printable Hydrates plus

Worksheets

Hydrates plus

Total questions: 13

Worksheet time: 3hrs 33mins

Name

Class

Date

Name the following ionic compound: MgSO₄*7H₂O

magnesium sulfate * hexahydarte

magnesium sulfate hexahydarte

magnesium sulfate heptahydrate

magnesium sulfate* heptahydrate

What is the correct formula for Sodium Oxide?

NaO

NaO₂

Na₂O

Na₂O₂

Name the following ionic compound: BeCl₂

beryllium chlorine

beryllium (II) chloride

beryllium chloride

beryllium dichloride

Na₂CO₃ · 10H₂O is known as sodium sulfate ______

Hydroxide

Hydrate

Decahydrate

None of the above

Name the following hydrate: NaCl * 5H₂O

sodium chloride

sodium monochloride pentahydrate

sodium chloride pentahydrate

pentahydrate

A 15.67 g sample of a hydrate of magnesium carbonate was heated to drive off the water. The mass was reduced to 7.58 g. What is the formula of the hydrate?

MgCO₃ · 5H₂O

MgCO₃ · 4H₂O

MgCO₃ · 6H₂O

MgCO₃ · 1H₂O

A compound is a hydrate when it...

is composed of only hydrogen and oxygen

is a state of water

traps water inside of the compound

repels water from the compound

An empirical formula:

is a formula that calculates the coefficients of a compound in a balanced equation.

is the simplest whole-number ratio of moles of elements in the compound.

A 4.175 gram sample of a certain hydrate of copper (II) sulfate, CuSO4•xH2O, is heated until all the water is driven off. The resulting anhydrous compound weighs 3.120 grams. What is the formula of the hydrate?

CuSO4•H2O

CuSO4•3H2O

CuSO4•6H2O

CuSO4•4H2O

10.

A 5.018 gram sample of a certain hydrate of magnesium sulfate, MgSO4•xH2O, is heated until all the water is driven off. The resulting anhydrous compound weighs 2.449 grams. What is the formula of the hydrate?

MgSO4•9H2O

MgSO4•8H2O

MgSO4•7H2O

MgSO4•6H2O

11.

ARE YOU HAPPY

yes

don't click this one

12.

Find the percent composition of Cu₂S?

Cu= 67.987%; S= 32.013%

Cu= 79.854%: S= 20.145%

Cu= 35.946%; S= 64.054%

Cu= 39.925%; S= 20.151%

13.

A sample with a molar mass of 34.00 g/mol is found to consist of 0.44 g H and 6.92 g O. Find its molecular formula.

H₂O₂

H₂O

H_1/2O_1/2

100 %

Hydrates plus

Total questions: 13

Worksheet time: 3hrs 33mins

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