The concentrations : 0.15 M
pH=11.21
<h3>Further explanation</h3>The ionization of ammonia in water :
NH₃+H₂O⇒NH₄OH
NH₃+H₂O⇒NH₄⁺ + OH⁻
The concentrations of all species present in the solution = 0.15 M
Kb=1.8 x 10⁻⁵
M=0.15
What do a mole of magnesium (Mg) and a mole of iron (Fe) have in common?
1 answer:
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Answer:
d. changing temperature
Explanation:
The thermodynamic equilibrium constant K is defined as a quantity characterizing the equilibrium of a chemical reaction. For a reaction where concentrations are in equilibrium:
aA + bB ⇄ cC + dD
The equilibrium constant is:
Thus, the equilibrium constant will change if:
a. Varying the initial concentration of reactants . FALSE. The k constant doesn't depend of initial concentrations but concentration in equilibrium does.
b. Adding other substances that do not react with any of thespecies involved in the equilibrium . FALSE. The equilibrium constant just depends of substances that are involved in the equilibrium
c. Varying the initial concentration of products . FALSE. Again, equilibrium constant doesn't depend of initial concentrations.
d. Changing temperature . <em>TRUE. </em>As a thermodynamic constant, k depends of temperature thus:
e. Changing the volume of the reaction vessel. FALSE. The changing in the volume of the reaction vessel will change just the initial concentrations of the reactants.
I hope it helps!