Acids (pH < 7) Molarity pH Acetic 1N 2.4 Acetic 0.1N 2.9 Acetic 0.01N 3.4 Alum 0.1N 3.2 Arsenious Saturated 5.0 Benzoic 0.1N 3.0 Boric 0.1N 5.3 Carbonic Saturated 3.8 Citric 0.1N 2.1 Formic 0.1N 2.3 Hydrochloric 1N 0.1 Hydrochloric 0.1N 1.0 Hydrochloric 0.01N 2.0 Hydrocyanic 0.1N 5.1 Hydrogen Sulfide 0.1N 4.1 Lactic 0.1N 2.4 Malic 0.1N 2.2 Nitric 0.1N 1.0 Orthophosphoric 0.1N 1.5 Oxalic 0.1N 1.3 Succinic 0.1N 2.7 Salicylic Saturated 2.4 Sulfuric 1N 0.3 Sulfuric 0.1N 1.2 Sulfuric 0.01N 2.1 Sulfurous 0.1N 1.5 Tartaric 0.1N 2.0 Trichloracetic 0.1N 1.2