Given:
Concentration of HF = 0.20 m
Volume of HF = 110 ml
Concentration of CsOH = 0.10 m
Volume of CsOH = 440 ml
Ka (HF) = 3.5 x 10^-4
Balanced Chemical Equation:
HF + CsOH ===> CsF + H2O
pH of the solution = log ([acid]/[base]) + pKa
pH = log ([0.20*(110/1000)]/[0.10*(440/1000)]) - log(3.5x10^-4)
pH = 3.15<span />
Answer:
The concentration of H₃O⁺ ions increase whereas the concentration of the OH⁻ decreases.
Explanation:
The water, H₂O, has its own equilibrium thus:
2H₂O(l) ⇄ OH⁻(aq) + H₃O⁺(aq)
Where the water equilibrium constant, Kw, is defined as:
Kw = 1x10⁻¹⁴ = [OH⁻] [H₃O⁺]
The addition of a base represents the increasing of [OH⁻]. that means the concentration of OH⁻ ions.
Based on LeCh principle, in an equilibrium, the addition of a product produce the decreasing in concentration of the other products trying to counteract the effect, that means the concentration of H₃O⁺ ions decreases.
Answer:
Valence electrons are the electrons in the outermost shell, or energy level, of an atom
Explanation:
Both salt and sugar have radically different properties (both ... known as table salt, is an ionic compound with the chemical formula NaCl, ...
Calculus, originally called infinitesimal calculus or "the calculus of infinitesimals", is the mathematical study of continuous change, in the same way that geometry is the study of shape and algebra is the study of generalizations of arithmetic operations.
