MOLE CONVERSION WORKSHEET

ANSWERS

Convert 36 g of H2O to moles.

36 g H2O X -----------------1 mol H2O

18 g H2O

____ = 2 mol H2O

What is the mass of 0.071 mol CO2?

0.071 mol CO2 X ----------------1 mol CO2

44 g CO2__________

= 3.1 g CO2

1.) How many moles are in 144 g of carbon?

144 g C X ----------------12 g C

1 mol C___

___= 12.0 mol C

2.) What is the mass of 5.0 moles of He?

5.0 mol He X ----------------1 mol He

4 g He_________

= 20 g He

3.) How many moles of N2 are in 84.0 g of nitrogen gas?

84.0 g N2 X ----------------28 g N2

1 mol N2____

___= 3.00 mol N2

4.) What is the mass of 12.0 moles of O2?

12.0 mol O2 X ----------------1 mol O2

32 g O2____

___= 384 g O2

5.) How many moles of water molecules are in 117 g of water?

117 g H2O X ----------------18 g H2O

1 mol H2O____

_____=

6.50 mol H2O

6.) What is the mass of 7.25 moles of H2O2?

7.25 mol H2O2 X ----------------1 mol H2O2

34 g H2O2______

______= 247

mol H2O2

7.) How many moles of NaCl are in 87.0 g of NaCl?

87.0 g NaCl X ----------------58.45 g NaCl

1 mol NaCl_____

_____= 1.49 mol

NaCl

8.) What is the mass of 6.0 moles of NaOH?

6.0 mol NaOH X ----------------1 mol NaOH

40 g NaOH______

_______= 240 g

NaOH

9.) How many moles of C12H22O11 are in 179 g of C12H22O11?

179 g C12H22O11 X ----------------342 g C12H22O11

1 mol C12H22O11_____

_____= 0.523 mol

C12H22O11

10.) What is the mass of 3.5 moles of HC2H3O2?

3.5 mol HC2H3O2 X ----------------1 mol HC2H3O2

60 g HC2H3O2______________

= 210 g HC2H3O2