Answer is: pH of hydrazine conjugate acid is 4.088.
Chemical reaction: N₂H₅⁺ + H₂O ⇄ N₂H₄ + H₃O⁺.
[N₂H₅⁺] = 2.0 M.
[N₂H₄] = [H₃O⁺] = x.
Kb(N₂H₄) = 3.0·10⁻⁶.
Kb·Ka = 1.00·10⁻¹⁴.
Ka(N₂H₅⁺) = 1.00·10⁻¹⁴ ÷ 3.0·10⁻⁶.
Ka = 3.33·10⁻⁹.
Ka = [N₂H₄]·[H₃O⁺] / [N₂H₅⁺].
3.33·10⁻⁹ = x² / 2.0 M.
x = [H₃O⁺] = √3.33·10⁻⁹ · 2.0 M.
[H₃O⁺] = 8.1·10⁻⁵ M.
pH = -log[H₃O⁺].
pH = -log(8.1·10⁻⁵ M).
pH = 4.088.
The following reaction is a DECOMPOSITION reaction evident by the fact that instead of multiple reactants reacting to produce products, a single compound breaks up (decompose) to form multiple products.
The answer is D because I don't see how energy is being converted by looking at yourself in the mirror.
The change in Gibbs Free Energy<span> </span><span> for any reaction is related to the equilibrium constant </span><span> by the simple equation- thats all i know</span>
Answer:
A
Explanation:
Protons and neutrons make up nearly all the mass of an atom, and each is worth 1 amu. Each atom of an element has a mass measured in amu; thus, its weighted average, or atomic mass, is measured in amu.
Electrons are way way way....lighter so protons and neutrons are taken into account when doing atomic mass.
