what will be the pH and normality,when

33.6liters of HCl having 1.179 s.g. and 36%concentration is mixed with 736 liters of distilled water

To determine the pH and normality of the mixture, we first need to calculate the amount of HCl in moles. We can then use this information to calculate the concentration of HCl in the final solution. Finally, we can use the formula for pH to find the pH value.

Step 1: Calculate the amount of HCl in moles:
To do this, we need the concentration of the HCl solution. The given HCl solution has a concentration of 36%. This means that 36% of the solution mass is HCl.

Mass of HCl = Volume of HCl × Density of HCl
= 33.6 liters × 1.179 g/mL
= 39.62 kilograms

Amount of HCl in moles = Mass of HCl / Molar mass of HCl
= 39.62 kg / 36.461 g/mol
≈ 1088.16 moles

Step 2: Calculate the concentration of HCl in the final solution:
To calculate the concentration of HCl in the final solution, we need to consider that the HCl solution is diluted with 736 liters of distilled water.

Total volume of solution = Volume of HCl + Volume of H2O
= 33.6 liters + 736 liters
= 769.6 liters

Concentration of HCl in the final solution = Amount of HCl / Total volume of solution
≈ 1088.16 moles / 769.6 liters
≈ 1.412 M

Step 3: Calculate the pH:
To calculate the pH of the solution, we need to use the formula:

pH = -log[H+]

Since HCl is a strong acid, it dissociates completely to give H+ ions. Therefore, the concentration of H+ ions will be equal to the concentration of HCl.

pH = -log(1.412)
= 0.850

Therefore, the pH of the mixed solution is approximately 0.850.

Normality is a measure of the number of equivalents of acid or base per liter of solution. Since HCl is a monoprotic acid, its normality will be equal to its molarity.

Normality of the solution ≈ 1.412 N

To summarize:
The pH of the mixed solution is approximately 0.850, and its normality is approximately 1.412 N.