Question

A NaOH solution of unknown concentration is titrated with 0.525 M HCl. 36.78 mL of the titrant is required to titrate 25.0 mL of the NaOH solution. What is the concentration of the NaOH solution.

Answer 1

To determine the concentration of the NaOH solution, we can use the equation Moles of NaOH = Moles of HCl. By calculating the moles of HCl and using the balanced equation, we can find the concentration of the NaOH solution.

Step-by-step explanation:

To determine the concentration of the NaOH solution, we can use the equation:

Moles of NaOH = Moles of HCl

First, let's calculate the moles of HCl using the given concentration and volume:

Moles of HCl = (0.525 M)(0.03678 L)

Next, since the equation is balanced at a 1:1 ratio, the moles of NaOH will be equal to the moles of HCl:

Moles of NaOH = 0.525 M × 0.03678 L

Now, we can calculate the concentration of the NaOH solution using the moles and volume:

Concentration of NaOH = Moles of NaOH / Volume of NaOH solution

Concentration of NaOH = (0.525 M × 0.03678 L) / 0.025 L

The concentration of the NaOH solution is 0.762 M.