Answer:
you would have 2.4 or 2 2/9
Explanation:
all you have to do is divide 9 and 22
Answer:
Formation of a precipitate
Explanation:
- A precipitate is a compound in solid-state that is formed when two soluble or aqueous compounds or salts react during a precipitation reaction.
- Precipitation reaction involves a reaction between two soluble salts or compounds to form a precipitate and an aqueous compound.
- For instance, a reaction between potassium chloride and silver nitrate is a precipitation reaction.
KCl(aq) + AgNO₃(aq) → KNO₃(aq) + AgCl(s)
- All the other choices are indicators of a chemical reaction or a chemical change.
The pressure of a gas is proportional to it's temperature and the volume of water.
<h3>What is gas pressure?</h3>
The pressure of a gas is the force it exerts per unit area on the walls of its container.
The pressure of a gas is proportional to the temperature of the gas. The higher the temperature, the higher the pressure and vice versa.
The pressure of a gas is also proportional to the volume of water in the container. The larger the volume of water , the higher the pressure.
Therefore, the pressure of a gas is proportional to it's temperature and the volume of water.
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Henderson-Hasselbalch equation relates the pH with the dissociation constant of the acid. The pH of the buffer solution will be 3.90.
<h3>What is the Henderson-Hasselbalch equation?</h3>
The Henderson-Hasselbalch equation is used to calculate the pH or the concentration of the conjugate base and acid.
The Henderson-Hasselbalch equation can be given as,
pH = pKa + log [A⁻] ÷ [HA]
The dissociation reaction is given as,
HA⁺ + H2O ⇌ H3O⁺ + A⁻
NaA → Na⁺ + A⁻
For this first pKa is calculated as:
pKa = - log (1. 0 x 10⁻⁴)
Substituting the value of pKa in Henderson-Hasselbalch equation pH is determined as:
pH = - log (1. 0 x 10⁻⁴) + log [0.08] ÷ [0.1]
= 4 + (-0.0969)
= 3.90
Therefore, 3.90 is the pH of the solution.
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