Question

Enter your answer in the provided box. Muriatic acid, an industrial grade of concentrated HCl, is used to clean masonry and cement. Its concentration is 11.7 M. For routine use, a diluted solution of 3.50 M is prepared. How many milliliters of 3.50 M muriatic acid solution contain 32.8 g of HCl

Answer 1

257 mL

Step-by-step explanation:

Step 1: Given data

• Concentration of the muriatic acid solution used (C): 3.50 M (3.50 mol/L)

• Mass of HCl (m): 32.8 g

Step 2: Calculate the moles (n) corresponding to 32.8 g of HCl

The molar mass of HCl is 36.46 g/mol.

32.8 g × 1 mol/36.46 g = 0.900 mol

Step 3: Calculate the volume (V) of solution required

We will use the following expression.

C = n/V

V = n/C

V = 0.900 mol/(3.50 mol/L)

V = 0.257 L = 257 mL