Recent content by Devaki

  1. D

    Chemistry - Acid/Base Buffer Related Problems?

    There are a few questions that I've been trying to find the answer to but to no avail ): Please help! 1) What mass of sodium nitrite must be added to 250 mL of a 0.200 M nitrous acid solution to make a buffer with pH = 3.00? a. 30.90 g b. 1.54 g c. 3.44 g d. 1.07 g 2) (Points: 1) How...
  2. D

    Chemistry - Acid/Base Buffer Related Problems?

    There are a few questions that I've been trying to find the answer to but to no avail ): Please help! 1) What mass of sodium nitrite must be added to 250 mL of a 0.200 M nitrous acid solution to make a buffer with pH = 3.00? a. 30.90 g b. 1.54 g c. 3.44 g d. 1.07 g 2) (Points: 1) How...
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