NH₃ + H₂O ⇄ NH₄⁺ + OH⁻
c=9,50*10⁻² mol/L
Ammonia solution is a weak electrolyte.
The dissociation constant of ammonium hydroxide is:
K=1.78*10⁻⁵
[OH⁻]=√(Kc)
pH=14-pOH=14+lg[OH]⁻
pH=14+lg(√(Kc))
pH=14+lg(√(1.78*10⁻⁵*9.50*10⁻²))=8.23
pH=8.23
The correct answer for the question that is being presented above is this one: "CaCO3(s) <-> CaO(s) + CO2(g)." In this reaction will the point of equilibrium shift to the left when the pressure on the system is increased: <span>CaCO3(s) <-> CaO(s) + CO2(g)</span>
Answer:
5.55 mol
Explanation:
1 mole of any substance is equal to 6.022 × 10²³. So, if we do
3.34 x 10^24 * 1 / 6.022 × 10²³ is equal to 5.55 mol.
