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USP32  BUFFER SOLUTIONS

Composition of Standard Buffer Solutions
Hydrochloric Acid Buffer
Place 50 mL of the potassium chloride solution in a 200-mL volumetric flask, add the specified volume of the hydrochloric acid solution, then add water to volume.
pH        1.2        1.3        1.4        1.5        1.6        1.7        1.8        1.9        2.0        2.1        2.2
0.2 M HCl, mL        85.0        67.2        53.2        41.4        32.4        26.0        20.4        16.2        13.0        10.2        7.8

Potassium Chloride, 0.2 M¡ªDissolve 14.91 g of potassium chloride (KCl) in water, and dilute with water to 1000 mL.

ÉÏÃæpHºÍ 0.2M HCl¼ÓÈëÁ¿ÎªÒ»Ò»¶ÔÓ¦¹ØÏµ¡£±¾À´ÊǸö±í¸ñ£¬·¢ÉÏÀ´Ïß¾ÍûÁË£¬²»ÖªµÀ´¦Àí¡£Ò²¾ÍÕâÑùÁË¡£

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pH        1.2        1.3        1.4        1.5        1.6        1.7        1.8        1.9        2.0        2.1        2.2
0.2 M HCl, mL        85.0        67.2        53.2        41.4        32.4        26.0        20.4        16.2        13.0        10.2        7.8

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[ Last edited by zghnlpf on 2011-12-27 at 16:36 ]
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