Grams, Moles, and Molecules



Grams, Moles, and Molecules

1. What is the conversion factor between grams and moles?

2. What is the conversion factor between moles and formula units?

3. How do you convert grams of something to formula units of something?

4. Complete the following table:

|Substance |Grams |Formula mass (g/mol) |Moles |Formula Units |

| | | | |(ie. molecules) |

|He |0.0035 | | | |

|Cl2 |0.0000634 | | | |

|O3 |0.0005027 | | | |

|HBr |0.013 | | | |

|NaOH |0.02998 | | | |

|PbSO4 |0.050 | | | |

|CH4 |0.00874 | | | |

|CH2Cl2 |0.00385 | | | |

|CH3CH2OH |1.0067 | | | |

|C6H12O6 |6.0786 | | | |

5. What is the conversion factor between grams of a component of interest and grams of total compound?

6. How many grams of carbon are in one gram of the following molecules?

a) CH4

b) CH3CH2OH

c) HC2H3O2

d) C6H12O6

7. What is the conversion factor between moles of a component of interest and moles of total compound?

8. How many moles of carbon are in one mole of the molecules in problem 6?

9. How many moles of carbon are in one gram of the molecules?

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