If you mix 471.65 mL of 1.786 M NaOH with excess CuCl2, how many grams of Cu(OH)2 could you make?

Question

CuCl₂ + NaOH --> Cu(OH)₂ + NaCl

Answer 1

First, you need to balance the equation

You need to change ml into L and use the molarity to find the number of mol of NaOH.

Use stoichiometry to change mol of NaOH into Mol of Cu(OH)2

You will need to find the molar mass of Cu(OH)2 if you do not include the parenthesis you will not get the correct molar mass.

The answer is 41.07g You have 4 sig figs in the molarity so you should have 4 sig figs in your answer