Question
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
108 amu
108 amu
179 amu
179 amu
215 amu
215 amu
161 amu
(1 point)
Responses
108 amu
108 amu
179 amu
179 amu
215 amu
215 amu
161 amu
Answers
GPT 3.5
To find the total mass of the reactants, we need to add up the atomic masses of iron (Fe) and chlorine (Cl) in iron chloride (FeCl3).
The atomic mass of iron (Fe) is 55.85 amu.
The atomic mass of chlorine (Cl) is 35.45 amu.
Since iron chloride (FeCl3) consists of one iron atom (Fe) and three chlorine atoms (Cl), the total mass of iron chloride is:
(1 * 55.85 amu) + (3 * 35.45 amu) = 55.85 amu + 106.35 amu = 162.2 amu
Therefore, the total mass of the reactants is 162.2 amu.
Thus, the correct answer is:
161 amu
The atomic mass of iron (Fe) is 55.85 amu.
The atomic mass of chlorine (Cl) is 35.45 amu.
Since iron chloride (FeCl3) consists of one iron atom (Fe) and three chlorine atoms (Cl), the total mass of iron chloride is:
(1 * 55.85 amu) + (3 * 35.45 amu) = 55.85 amu + 106.35 amu = 162.2 amu
Therefore, the total mass of the reactants is 162.2 amu.
Thus, the correct answer is:
161 amu