Calculate the #"pH"# change in a buffer solution upon the addition of strong acids / base of known concentration?
Calculate the #"pH"# change that take place when a #100color(white)(l)"ml"# portion of A), B)
is added to a #40color(white)(l)"ml"# of buffer solution made up of
#0.2color(white)(l)"M"# #"NH"_3# and
#0.3color(white)(l)"M"# #"NH"_4"Cl"#
given that #"Kb"=1.8 × 10^(−5) color(white)(l) "mol"\cdot "dm"^(-3)# for #"NH"_3# . (Chemistry Libretext )
A) #0.5color(white)(l)"M"# #"NaOH"#
B) #0.05color(white)(l)"M"# #"HCl"#
Calculate the
is added to a
#0.2color(white)(l)"M"# #"NH"_3# and#0.3color(white)(l)"M"# #"NH"_4"Cl"#
given that
A)
B)
A)
B)
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pH change can be calculated using the Henderson-Hasselbalch equation: [ \text{pH} = \text{pKa} + \log\left(\frac{\text{A^-}}{\text{HA}}\right) ] Where:
- pH is the final pH of the solution.
- pKa is the acid dissociation constant of the weak acid.
- A^- is the concentration of the conjugate base.
- HA is the concentration of the weak acid.
- Log is the base 10 logarithm.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- What is an example of a titration practice problem?
- What causes the pH of a solution to increase?
- If #"25 cm"^3# of a solution of calcium hydroxide with a concentration of #"1 g/dm"^3# takes a titre of 25 cm^3 of hydrochloric acid, what is the molar concentration of the #"HCl"#?
- How would you rearrange the Henderson–Hasselbalch equation to find out [a/ha] from pH=pKa + log[a/ha] ?
- What ions are present in solutions of sodium hydroxide?

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