Calculate the number of moles of HCL(aq) added to the sodium thiosulphate

Answer 1

In order to calculate the number of moles of HCl(aq) added to the sodium thiosulphate, we need to know the volume and concentration of the HCl solution.

Let's assume you have added a volume of V mL of HCl(aq) with a concentration of C M.

To calculate the number of moles of HCl, we use the formula:

moles of solute = volume of solution (in liters) × concentration of solution

First, we need to convert the volume of HCl(aq) added to liters:

V (in liters) = V (in mL) / 1000

Now, we can calculate the number of moles of HCl:

moles of HCl = V (in liters) × C (in M)

Remember to use the correct units to ensure accuracy in your calculations.