Mole Ratios and Mole Conversions (CHEM 1405)

Back to Chemistry 1405 Practice Problems


Balance the following equations, and then write the mole ratios, using dimensional analysis.

1.     N2     +    H2    Arrow-5.png    NH3

 

a) write the ratio of nitrogen gas to hydrogen gas

 

b) nitrogen gas to ammonia (NH3)

 

c) hydrogen gas to ammonia (NH3)

 

 

 

2.     H2     +    S8    Arrow-5.png    H2S

 

a) hydrogen gas to hydrogen sulfide

 

b) hydrogen gas to sulfur

 

c) hydrogen sulfide to sulfur

 

 

 

3.     CH4     +     O2    Arrow-5.png     CO2    +     H2O

 

a) oxygen gas to carbon dioxide

 

b) methane (CH4) to carbon dioxide

 

c) methane (CH4) to water

 

d) oxygen gas to water

 

 

 

4.     H2     +    O2    Arrow-5.png     H2O

 

a) hydrogen gas to water

 

b) If you had 20 moles of hydrogen gas, how many moles of water could you make?

 

c) oxygen gas to water

 

d) If you had 20 moles of oxygen gas, how many moles of water could you make?

 

 

 

5.     N2     +    H2    Arrow-5.png    NH3

 

a) If 1 mole of nitrogen gas were used, how many moles of ammonia would be produced?

 

b) If 10 moles of ammonia were produced, how many moles of nitrogen gas would be required?

 

c) If 3.00 moles of hydrogen gas were used, how many moles of ammonia would be produced?

 

d) If 0.600 moles of ammonia were produced, how many moles of hydrogen gas would be required?

 

 

 

6.    NaI    +     Cl2    Arrow-5.png    NaCl      +      I2

 

a) How many moles of sodium chloride would be produced when 5.00 moles of chlorine gas are used?

 

b) If 3.50 moles of sodium chloride are produced, how many moles of chlorine gas must be used?

 

c) Given the data in part b, how many moles of sodium iodide must be used?

 

d) If 4.75 moles of sodium iodide are used, how many moles of pure iodine are produced?