Low pH buffer

Prepare a 0.2M solution of potassium chloride (KCl) (14.92g/l)
To 25cm3 of this solution add the volume of 0.2M HCl shown in the table and make up to 100cm3 with water
    pH at 25°C Volume of 0.2M HCl added (cm3)
    1.0 67.0
    1.1 52.8
    1.2 42.5
    1.3 33.6
    1.4 26.6
    1.5 20.7
    1.6 16.2
    1.7 13.0
    1.8 10.2
    1.9 8.1
    2.0 6.5
    2.1 5.1
    2.2 3.9
    Bower & Bates, J. Res. natn. Bur. Stand. 55, 197 (1955)

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