When a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction:

2NaCl + 2H2O → 2NaOH + Cl2 + H2.

Using the periodic table, what are the molecular masses of the starting and ending substances?

NaCl = g/mole

Cl2 = g/mole

Question

When a current is passed through a solution of salt water, sodium chloride decomposes according to the following reaction:

2NaCl + 2H2O → 2NaOH + Cl2 + H2.

Using the periodic table, what are the molecular masses of the starting and ending substances?

NaCl =  g/mole

Cl2 =  g/mole

chmvijay · Answer

add the atomic mass of individual atoms present in the respective  molecule 
example =NaCl = atomic mass of Na + atomic mass of Cl