To prepare a 1 M HCl solution from a 37.5% concentrated HCl stock solution with a density of 1.189 g/mL, you can follow these steps:
1. Calculate the molarity of the concentrated HCl solution:
- The molarity of the concentrated HCl solution can be calculated using the formula:
M1V1 = M2V2
where M1 is the molarity of the concentrated HCl solution, V1 is the volume of the concentrated HCl solution, M2 is the desired molarity (1 M), and V2 is the total volume of the final solution.
- Since the concentration of the concentrated HCl solution is 37.5%, this means that 37.5 g of HCl is present in 100 mL of the solution.
- Calculate the molarity of the concentrated HCl solution:
M1 = (37.5/36.46) / (100/1.189) = 10.39 M
2. Calculate the volume of the concentrated HCl solution required:
- Using the formula M1V1 = M2V2:
10.39 * V1 = 1 * V2
V1 = V2 / 10.39
3. Calculate the volume of the concentrated HCl solution needed to prepare 1 L (1000 mL) of 1 M HCl solution:
- V1 = 1000 / 10.39 = 96.3 mL
4. To prepare the 1 M HCl solution, measure 96.3 mL of the concentrated HCl solution using a graduated cylinder or pipette, and then dilute it with water to a total volume of 1 L.
How would you prepare 1 M HCl solution from a 37.5
% concentrated HCl stock solution. The density of the
concentrated HCl is 1.189 g/mL.
1 answer