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28.07.2022 - 15:33

Muriatic acid is sold in many hardware stores for cleaning bricks and tile. What is the molarity of the commercial solution if 125 mL contains 27.3 g of HCl?

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Muriatic acid is sold in many hardware stores for cleaning bricks and tile. What is the molarity of the commercial solution if 125 mL contains 27.3 g of HCl?

Answers (1)

Iona April 1, 2023 в 22:51

The first step is to use the molar mass of HCl (which is 36.46 g/mol) to convert 27.3 g of HCl to moles: 27.3 g HCl x (1 mol HCl/36.46 g HCl) = 0.749 mol HCl Then, using the volume of the solution (125 mL = 0.125 L), we can calculate the molarity (M) of the solution using the formula: M = moles of solute/volume of solution in liters M = 0.749 mol HCl/0.125 L = 5.99 M Therefore, the molarity of the commercial solution of muriatic acid is 5.99 M.

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