How many moles are there in a 2.00 kg bottle of water?
1 answer:
You might be interested in
The pH of a buffer solution containing acid of pKa 7.5 will be 8.1.
The pH of a solution indicates its acidity or basicity. A pH below 7 is acidic, while pH above 7 is basic. 7 is considered as the neutral value.
A buffer is a solution that has the ability to resist the change in pH when an acid or a base is added to it. The natural example of buffer is blood.
According to the question, pKa of acid = 7.5
If concentration of base is x then, concentration of acid will be x/4.
According to the Henderson–Hasselbalch equation,
pH = pKa + log [A⁻] / [HA]
pH = 7.5 + log []
pH = 7.5 + log 4 ⇒ 7.5 + 0.602
pH = 8.1
To know more about buffer, here
#SPJ4
Answer:
Density is the correct answer choice.
