2. A researcher wants to make a buffer 4.0 x 10-4) and sodium nitrite. a) Determine the approximate ratio of the two buffer components that she should use to get the desired pH. b) Evaluate the researcher's decision to use the nitrous acid/nitrite buffering system. K of HE is 3 17

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2.
A researcher wants to make a buffer of pH 4.70 using nitro
4.0 x 10-4) and sodium nitrite.
Acids a) Determine the approximate ratio of the two buffer components that she should
use to get the desired pH.
Evaluate the researcher's decision to use the nitrous acid/nitrite buffering
system.
b)
3.
The pKa of HF is 3.17.
a) Calculate the pH of a 2.00 L solution that is 1.00 M HF and 3.00 M NaF.
b) What is the pH of this solution after addition of 40.0 mL of 10.0 M HCI?
what
Transcribed Image Text:2. A researcher wants to make a buffer of pH 4.70 using nitro 4.0 x 10-4) and sodium nitrite. Acids a) Determine the approximate ratio of the two buffer components that she should use to get the desired pH. Evaluate the researcher's decision to use the nitrous acid/nitrite buffering system. b) 3. The pKa of HF is 3.17. a) Calculate the pH of a 2.00 L solution that is 1.00 M HF and 3.00 M NaF. b) What is the pH of this solution after addition of 40.0 mL of 10.0 M HCI? what
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