Question

If you have 155 mL solution of a 0.762 M FeCl₃ solution, how many moles of are FeCl₃ are contained in this sample.

Answer 1

To find the number of moles of FeCl₃ in the given solution, we can use the equation Moles = Concentration × Volume. Plugging in the given values, we find that there are approximately 0.11841 moles of FeCl₃ in the solution.

Step-by-step explanation:

To find the number of moles of FeCl₃ in the given 155 mL solution, we need to first calculate the number of moles of FeCl₃ present in 1 L of solution. The given concentration is 0.762 M, which means there is 0.762 moles of FeCl₃ in 1 L of solution. To convert this to moles in 155 mL, we can use the equation:

Moles = Concentration × Volume = 0.762 M × 155 mL

Plugging in the given values, we get:

Moles = 0.762 M × 0.155 L = 0.11841 moles of FeCl₃

Therefore, there are approximately 0.11841 moles of FeCl₃ in the given 155 mL solution.