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Questions

1. Write down the definition of a mole.

 

 

2. What is the mass of one mole of oxygen gas?

 

 

3. How many moles are there in 42g of carbon?

 

 

4. How many grams are in 4.5 moles of Li2O? 

 

 

5. Find the mass of 0.12 mole of H2SO4.

 

 

6. Find the mass of 1.2 mole of NH3.

 

 

7. Find the mass of 0.002 mole of NO3.

 

 

8. Find the mass of 0.75 mole of H2O.

   

 

 

 

 

 

   

1. A mole is the relative formula mass of a substances, in grams.

 

2. One mole of O2 weighs 16x2= 32g.

 

3. 3.5 moles

 

4. 134.1 grams

 

5. 11.76 grams

 

6. 75.6 grams

 

7. 0.124 grams

 

8. 13.5 grams

 

 

 

Check your answers.

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