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What is muriatic acid?

Please Help ASAP: Hydrochloric acid for pool use is called Muriatic acid and is sold...?

  • Hydrochloric acid for pool use is called Muriatic acid and is sold in a standardized concentration of 31.45 wt%. Calculate the molarity of a 31.45 wt% muriatic acid solution given that the solution density is 1.17 g/mL. Please show all work and explanations. Thank you so much.

  • Answer:

    Take a hypothetical sample of 1.000 L: (1000 mL) x (1.17 g/mL) x (0.3145) / (36.4611 g HCl/mol) = 10.1 mol So the concentration is 10.1 mol/L = 10.1 M

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Let the muriatic acid solution be called S. Atomic weights: H=1, Cl=35.5, HCl=36.5 31.45gHCl/100gS x 1.17gS/1.00mLS x 1000mLS/1LS x 1molHCl/36.5gHCl = 10.08 M

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