3 molar. Use the amount of concentrated acid indicated and dilute to one liter.
Acetic acid, 3 N. Use 172 ml of 17.4 M acid (99-100%).
Hydrochloric acid, 3 N. Use 258 ml of 11.6 M acid (36% HCl).
Nitric acid, 3 N. Use l95 ml of 15.4 M acid (69% HNO₃).
Phosphoric acid, 9 N. Use 205 ml of 14.6 M acid (85% H₃PO₄)
Sulfuric acid, 6 N. Use 168 ml of 17.8 M acid (95% H₂SO₄)
Sulfuric acid, 2 N. Use 56 ml of 17.8 M acid (95% H₂SO₄)