Use the equation and the table to answer the question.FeCl3 + 3H2O → Fe(OH)3 + 3HClElement Mass of an Atom (amu)Fe 56Cl 35H 1O 16Iron chloride and water react according to the equation shown. The table shows the atomic masses of the elements involved in the reaction. What is the total mass of the reactants?(1 point)Responses215 amu215 amu161 amu161 amu108 amu108 amu179 amu

1 answer

To find the total mass of the reactants from the reaction \( \text{FeCl}_3 + 3\text{H}_2\text{O} \), we need to calculate the mass of each reactant based on their formula and the atomic masses provided.

  1. Calculate the mass of \(\text{FeCl}_3\):

    • Iron (Fe): 1 atom × 56 amu = 56 amu
    • Chlorine (Cl): 3 atoms × 35 amu = 105 amu
    • Total mass of \(\text{FeCl}_3\) = 56 amu + 105 amu = 161 amu
  2. Calculate the mass of \(3\text{H}_2\text{O}\):

    • Hydrogen (H): 2 atoms in \(H_2O\) × 1 amu = 2 amu
    • Oxygen (O): 1 atom × 16 amu = 16 amu
    • Total mass of \(H_2O\) = 2 amu + 16 amu = 18 amu
    • For \(3\text{H}_2\text{O}\): 3 × 18 amu = 54 amu
  3. Total mass of reactants:

    • Mass of \(\text{FeCl}_3\) + Mass of \(3\text{H}_2\text{O}\) = 161 amu + 54 amu = 215 amu

So, the total mass of the reactants is 215 amu.