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
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.
To find the total mass of the reactants, we can add up the atomic masses of FeCl3 and H2O:
FeCl3: Fe (56 amu) + 3Cl (35 amu) = 56 amu + 105 amu = 161 amu
H2O: 2H (2 amu) + 1O (16 amu) = 2 amu + 16 amu = 18 amu
Total mass of reactants = FeCl3 + H2O = 161 amu + 18 amu = 179 amu
Therefore, the total mass of the reactants is 179 amu.
To find the total mass of the reactants, we need to add up the masses of the individual atoms in FeCl3 and H2O.
First, let's find the mass of FeCl3:
Fe has a mass of 56 amu, and there are 1 Fe atom in FeCl3.
Cl has a mass of 35 amu, and there are 3 Cl atoms in FeCl3.
So the total mass of FeCl3 = (56 amu * 1) + (35 amu * 3) = 56 amu + 105 amu = 161 amu.
Next, let's find the mass of H2O:
H has a mass of 1 amu, and there are 2 H atoms in H2O.
O has a mass of 16 amu, and there is 1 O atom in H2O.
So the total mass of H2O = (1 amu * 2) + (16 amu * 1) = 2 amu + 16 amu = 18 amu.
Finally, we can find the total mass of the reactants by adding the mass of FeCl3 and H2O:
Total mass of reactants = mass of FeCl3 + mass of H2O = 161 amu + 18 amu = 179 amu.
Therefore, the total mass of the reactants is 179 amu.