3 Answered Questions for the topic buffers

Buffers Chemistry


Preparation of buffer

Calculate the volumes of 1M sodium acetate, 1M acetic acid and water to prepare 100mL of a pH 4 buffer assuming that the final concentration of acetic acid in the buffer is 0.25M. Ka = 1.8 x 10^-4


A 1.00 liter solution contains 0.53 M hypochlorous acid and 0.40 M potassium hypochlorite.

If 35.0 mL of water are added to this system, indicate whether the following statements are true or false.(Note the the volume MUST CHANGE upon the addition of water.)A. The concentration... more

Chemistry question about buffers

Which sets of substances can act as buffers? Select all that are correct. NH3 and NH4Cl HNO2 and NaNO2 NaOH and NaCl NH3 and HCl HCl and NaCl I would like understand why some substances can... more

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