Question

Prepare 500 mL of a 0.1 M HCl (conc. HCl stock is approx. 12.1 M) solution by diluting the appropriate quantity of conc. HCl with distilled water. Show your instructor the calculation before making the solution. Fill your burette with the HCl solution and standardize it against sodium carbonate as follows.

how much HCL is needed? please show calculations

Answer 1

use dilution formula
M1*V1 = M2*V2
1---> is for stock solution
2---> is for diluted solution

Given:
M1 = 12.1 M
M2 = 0.1 M
V2 = 500 mL

use:
M1*V1 = M2*V2
V1 = (M2 * V2) / M1
V1 = (0.1*500)/12.1
V1 = 4.13 mL
Answer: 4.13 mL