PHYSICAL SCIENCE WORKSHEET  --  ORANGE

 

 

1.   1 mole of iron weighs ____________________ grams.

2.   1 mole of iron contains __________________ atoms.

3.   7.4 moles of iron weighs _________________ grams.

4.   7.4 moles of iron contains _________________ atoms.

5.   1 gram of iron contains __________________ atoms.

6.   1 atom of iron weighs ____________________ grams.

7.   1.2 E 24 atoms of iron would be _________________ moles of iron.

8.   6.4 E 31 atoms of iron would be __________________ moles of iron.

9.   6.4 E 31 atoms of iron weighs ____________________ grams.

10.  140 grams of iron would be _______________________ atoms.

 

11.  1 mole of Ca(OH)₂ weighs _______________________ grams.

12.  In one mole of Ca(OH)₂ there are __________________ ion pairs.

13.  4 moles of Ca(OH)₂ weighs ____________________ grams.

14.  In 2.2 E - 3 moles of Ca(OH)₂ there are _________________ ion pairs.

15.  The total number of atoms in one mole of Ca(OH)₂ would be _____________.

16.  2.2 E - 3 moles of Ca(OH)₂ weighs ________________ grams.

17.  1.6 E 4 grams of Ca(OH)₂ would would be ____________________ ion pairs.

 

18.  A compound contains 29.1% sodium, 40.5% sulfur, and 30.4% oxygen.

     What would be the empirical formula for this compound? _______________

 

 

19.  3 grams of hydrogen combines with 42 grams of nitrogen and 144 grams

     of oxygen to form a new compound.  What would be the empirical formula

     of this compound? ___________  How many moles of this compound would

     be created? _______.

 

 

 

20.  Describe how you could make (exactly) 183 grams of KClO₃.

                                                  

                   PHYSICAL SCIENCE WORKSHEET  --  WHITE

 

 

1.   1 mole of CO₂ weighs _____________________ grams.

2.   3 moles of CO₂ contains __________________ molecules of CO₂.

3.   3 molecules of CO₂ weighs ________________ grams.

4.   3 moles of CO₂ contains __________________ atoms of carbon.

5.   3.1 moles of CO₂ contains ________________ molecules of CO₂.

6.   3.1 moles of CO₂ contains ________________ grams of CO₂.

 

7.   1 mole of KClO₃ weighs ___________________ grams.

8.   6 grams of KClO₃ would be ________________ moles.

9.   6 grams of KClO₃ if split up will produce ___________ grams of K,

     ____________ grams of Cl, and ___________ grams of O.

 

10.  Find the percentage composition of each element in KNO₃.

     ______________% K, _____________% N, _____________% O

11.  1 mole of KNO₃ weighs ________ grams and contains ___________ ion pairs.

12.  In 1 mole of KNO₃ there are ____________ moles of K,

     ____________ moles of N, and  3 moles of _________________.

13.  In 0.25 moles of KNO₃ there are ___________ grams of K,

     ___________ grams of N, and ____________ grams of O.

14.  5 E 23 ion pairs of KNO₃ is ___________ moles and weighs _________ grams.

15.  10 grams of KNO₃ would be ____________ moles of KNO₃ and would be

     ________________ ion pairs.

 

16.  In 2.2 moles of H₃PO₄ there are __________ grams of H,

     ___________ grams of P, and _____________ grams of O.

17.  2.1 E 24 molecules of H₃PO₄ would be ______________ moles and would

     weigh ____________ grams.

18.  In 2.2 moles of H₃PO₄ there are _________________ molecules of H₃PO₄

     and ________ atoms of H, _________ atoms of P, and _________ atoms of O

19.  In 100 grams of H₃PO₄ there would be __________ grams of H,

     ___________ grams of P, and ___________ grams of O.

20.  Find the percentage composition of each element in H₃PO₄

     _____________% H, ______________% P, _______________% O