Use the equation and the table to answer the question.FeCl3 + 3H2O → Fe(OH)3 + 3HClElementMass of an Atom (amu)Fe56Cl35H1O16Iron 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)Responses108 amu108 amu179 amu179 amu215 amu215 amu161 amu
To find the total mass of the reactants, we need to sum the individual masses of the atoms involved in the reaction.
FeCl3:
Fe (Iron) has a mass of 56 amu
Cl (Chlorine) has a mass of 35 amu (x3 because there are three chlorine atoms in FeCl3)
Total mass of FeCl3 = 56 amu + (35 amu * 3) = 56 amu + 105 amu = 161 amu
H2O:
H (Hydrogen) has a mass of 1 amu (x6 because there are six hydrogen atoms in 3H2O)
O (Oxygen) has a mass of 16 amu (x3 because there are three oxygen atoms in 3H2O)
Total mass of H2O = (1 amu * 6) + (16 amu * 3) = 6 amu + 48 amu = 54 amu
Therefore, the total mass of the reactants is 161 amu (FeCl3) + 54 amu (H2O) = 215 amu.
The correct answer is:
215 amu