Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
Hey There!:
number of moles = 2 moles KI
Volume = 1 L
Therefore:
M = n /V
M = 2 / 1
M = 2.0 mol/L
hope this helps!
21Explanation:BEACUSE I CAN
Answer:
4.16
Explanation:
Considering the Henderson- Hasselbalch equation for the calculation of the pH of the buffer solution as:
pH=pKa+log[base]/[acid]
Where Ka is the dissociation constant of the acid.
Given that:
pKa = 3.86
Given, concentration of acid = [acid] = 0.4 M
concentration of base = [base] = 0.8 M
So,
pH=3.86+log(0.8/0.4) = 4.16
A solution that has the capacity to hold additional solute at a certain temperature is called Under-saturated.
