1. Let’s compose the equation of the chemical reaction.
Mg + Cl2 = MgCl2.
2. Calculate the amount of magnesium reacted.
n (Mg) = m (Mg) / M (Mg) = 4.8 g / 24 g / mol = 0.2 mol.
3. Using the reaction equation, we find the mass of magnesium chloride.
n (MgCl2) = n (Mg) = 0.2 mol.
m (MgCl2) = n (MgCl2) * M (MgCl2) = 0.2 mol * 95 g / mol = 19 g.
Answer: m (MgCl2) = 19 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.