[NH,*]= 0.10 M [NH3] = 1.00 M OH3BO3/H₂BO3 O H₂CO3/HCO3 HOCI / OCI- NHÀ 1 NH3 O HCO₂H/HCO₂ O HCO3 / CO3²- pH = 10.25 pk = 9.25 K₂= 5.6 × 10-10 Which of the following best describes the control of buffer pH? A buffer's pH is near the weak acid's pK, and shifts with changes in the [base] or [acid]. The pH of a buffer depends only on the relative concentrations of the weak acid and weak base present. The pH of a buffer depends only on the pk of the weak acid.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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SIMULATION pH of Buffer Solutions
[NH4+] = 0.10 M
[NH3] = = 1.00 M
H3BO3/H₂BO3
H₂CO3 / HCO3-
HOCI / OCI-
Check
+
NHÀ /NH3
HCO₂H/HCO₂
O HCO3- / CO3²-
= 10.25
pH
pk = 9.25
K₂ = 5.6 × 10-10
Which of the following best describes the control of buffer pH?
A buffer's pH is near the weak acid's pk and shifts with changes in the [base] or [acid].
The pH of a buffer depends only on the relative concentrations of the weak acid and weak base present.
The pH of a buffer depends only on the pk of the weak acid.
Next> (7 of 7)
Transcribed Image Text:SIMULATION pH of Buffer Solutions [NH4+] = 0.10 M [NH3] = = 1.00 M H3BO3/H₂BO3 H₂CO3 / HCO3- HOCI / OCI- Check + NHÀ /NH3 HCO₂H/HCO₂ O HCO3- / CO3²- = 10.25 pH pk = 9.25 K₂ = 5.6 × 10-10 Which of the following best describes the control of buffer pH? A buffer's pH is near the weak acid's pk and shifts with changes in the [base] or [acid]. The pH of a buffer depends only on the relative concentrations of the weak acid and weak base present. The pH of a buffer depends only on the pk of the weak acid. Next> (7 of 7)
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