Question

How do you prepare 50.0 ml of .03 M concentrated hydrochloric acid.calculate the amount needed,the dilution scheme and actual final concentration?

Answer 1

Answer on Question#40108 - Chemistry - Other

How do you prepare 50.0 ml of .03 M concentrated hydrochloric acid? calculate the amount needed, the dilution scheme and actual final concentration?

**Solution.**

The amount of HCl:

$$\mathrm{C_1V_1 = C_2V_2}$$

We need to find the volume of 1 M HCl, which will be dilute.

$$V_2 = \frac{C_1V_1}{C_2}$$ $$V_2 = 0.03 \, \text{M} \times 0.05 \, \text{L} / 1 \, \text{M} = 0.0015 \, \text{L}$$

So, we take 1.5 mL of 1 M solution HCl and diluted to 50 mL. Concentration of the solution will be 0.03 M