Calculation of normality from titration data

Please solve the following problem, invent the data if necessary, what I am looking for is to learn the method so that later I can perform calculations with other values. He sought to solve point 7 only

Practice:

A) Normalization of the 0.1 N HCl solution with the Na2CO3 solution 1. Perform the calculations to prepare 250 mL of a 0.1 N HCl solution. 2. In a 250 ml volumetric flask add half the volume of distilled water, measure the necessary volume of concentrated HCl and add to the flask. Make up to the final volume. 3. Perform the calculations to prepare 100 mL of a standard solution of Na2CO3 0.1 N. 4. Weigh the solid and dissolve with a little water to later calibrate to 100 mL. 5. Place in Erlenmeyer flasks three aliquots of 10 mL of HCl 0.1 and two drops of orange of methyl. 6. Evaluate each aliquot by adding the Na2CO3 standard solution until observing the turn of the indicator. 7. Determine the normality of HCl from the concentration of the standard solution. Report the average value of concentration indicating the coefficient of variation.