Chlorine obtained by electrolysis of calcium chloride melt fully interacts with iron weighing
August 29, 2021 | education|
Chlorine obtained by electrolysis of calcium chloride melt fully interacts with iron weighing 112 g. How many grams of calcium was formed during electrolysis.
Chlorine reacts with iron to form iron (III) chloride;
1) Find the number of mol of Fe (M = 56 g / mol): n (Fe) = 112/56 = 2 mol;
2) Find the number of mol Ca: n (Ca) = n (Cl2) = (3/2) * n (Fe) = 3 * 2/2 = 3 mol;
3) Find the mass of calcium (M = 40 g / mol): m (Ca) = 3 * 40 = 120 g;
Answer: 120 g
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.