CHEMISTRY NAMEPERIOD MOLES WORKSHEET III 1 SOLVE THE

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Chemistry 1-2—Chapter 1

Chemistry Name_________________Period______

Moles Worksheet III


  1. Solve the following:

A1. How many moles are in 4.55 g. of calcium hydroxide?

4.55g

1 mole =

0.614 mole


74.10



A2. What is the mass of 6.25 moles of copper (II) nitrate?

6.25 moles

187.57 g =

1.17 103 g


1 mole



B1. How many molecules of water are in 6.10 Liters of water?

6.10 Liters

1 mole

6.02 x 1023 molecules =

1.34 molecules


22.4 L

1 mole



B2. How many moles are in 6.60 x 1023 formula units of ammonium sulfate?

6.60 x 1023 formula units

1 mole =

1.10 moles


6.02 x 1023 formula units



C1. How many molecules are in 125 g. of sugar, C12H22O11?

125 g

1 mole

6.02 x 1023 molecules =

2.20 x 1023 molecules


342.34 g

1 mole



C2. What is the volume of 456 g of oxygen gas ( O2)?


456 g

1 mole

22.4 L =

14.25 L


32.0 g

1 mole




  1. Calculate the moles of lead (II) chloride in 151.0 g. of lead (II) chloride.


151.0g

1 mole

0.543 mole


278.1 g





  1. Calculate the volume of carbon dioxide in 3.23 moles of carbon dioxide.


3.23 moles

22.4 L

73.4 L


1 mole





  1. Calculate the moles of carbon tetrachloride in 1.65 x 1024 molecules of carbon tetrachloride.


1.65 x 1024 molecules

1 mole

2.74 moles


6.02 x 1023 molecules









  1. Calculate the molecules of diarsenic pentoxide in 10.75 moles of diarsenic pentoxide.


10.75 moles

6.02 x 1023 molecules

6.47 x 1024 molecules


1 mole





  1. Calculate the mass of iodine in 4.50 x 1023 molecules of nitrogen (N2)


4.50 x 1023 molecules

1 mole

28.02 g N2

20.9 g N2


6.02 x 1023 molecules

1 mole







  1. Calculate the molecules of lithium oxide in .860 grams of lithium oxide.


.860 grams

1 mole

6.02 x 1023 molecules

1.73 10 22

molecules


29.88 g

1 mole






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