25% HCl means 25 g HCl in 100 g solution.
volume of 100 g solution is mass/density. Substitute and solve for volume in mL, convert to L.
Calculate mols HCl from grams HCl/molar mass HCl.
Then M HCl = mols HCl/L solution.
pH = -log(HCl)
pH + pOH = pKw = 14. You have pH and pKw, solve for pOH.
Post your work if you get stuck.
Calculate the PH and POH of an aqueous solution that is 25.00% of HCL by mass and density of 1.35g/no
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