To find the total mass of the reactants, we need to add up the atomic masses of all the atoms involved in the reaction.
FeCl3: The atomic mass of Fe is 56 amu, and there are three Cl atoms with an atomic mass of 35 amu each. Adding these together, we get: 56 amu + (3 x 35 amu) = 56 amu + 105 amu = 161 amu.
H2O: The atomic mass of H is 1 amu, and there are two H atoms in H2O. The atomic mass of O is 16 amu. Adding these together, we get: (2 x 1 amu) + 16 amu = 2 amu + 16 amu = 18 amu.
Finally, we need to add the masses of FeCl3 and H2O together: 161 amu + 18 amu = 179 amu.
So, the total mass of the reactants is 179 amu.
Therefore, the correct answer is: 179 amu.
Use the equation and the table to answer the 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 215 amu 215 amu 161 amu 161 amu 108 amu 108 amu 179 amu
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