Use the equation and the table to answer the question.

Question

FeCl3 + 3H2O → Fe(OH)3 + 3HCl
Element Mass of an Atom (amu)
Fe 56
Cl 35
H 1
O 16

Iron 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)
Responses

179 amu
179 amu
161 amu
161 amu
215 amu
215 amu
108 amu

Answer 1

The total mass of the reactants can be found by adding the atomic masses of each individual element in the equation:

FeCl3: (Fe = 56) + 3(Cl = 35) = 56 + 105 = 161 amu
3H2O: 3(H = 1) + 3(O = 16) = 3 + 48 = 51 amu

Total mass of reactants = 161 amu + 51 amu = 212 amu

Therefore, the correct response is: 215 amu