Explanation:
Sodium hydroxide completely ionizes in water to produce sodium ions and hydroxide ions. Hydroxide ions are in excess and neutralize all acetic acid added by the following ionic equation:
The mixture would contain
if undergoes no hydrolysis; the solution is of volume after the mixing. The two species would thus be of concentration and , respectively.
Construct a RICE table for the hydrolysis of under a basic aqueous environment (with a negligible hydronium concentration.)
The question supplied the <em>acid</em> dissociation constant for acetic acid ; however, calculating the hydrolysis equilibrium taking place in this basic mixture requires the <em>base</em> dissociation constant for its conjugate base, . The following relationship relates the two quantities:
... where the water self-ionization constant under standard conditions. Thus . By the definition of :
Answer:
Explanation:
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In this case, since the buffer is not given, we assume it is based off ammonia, it means the ammonia-ammonium buffer, whereas the ammonia is the weak base and the ammonium ion stands for the conjugate acid. In such a way, when adding HI to the solution, the base of the buffer, NH3, reacts with the former to promote the following chemical reaction:
Because the HI is totally ionized in solution so the iodide ion becomes an spectator one.
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For p<span>rincipal quantum number n=4:
1) a</span><span>zimuthal quantum number (l) can be l = 0...n-1:
l = 0, 1, 2, 3.
</span><span>The azimuthal quantum number determines its orbital angular
momentum and describes the shape of the orbital. </span><span>
2) m</span>agnetic quantum number (ml) can be ml = -l...+l.
ml = -3, -2, -1, 0, +1, +2, +3.
<span>Magnetic quantum
number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.
3) t</span>he spin quantum
number (ms), is the spin of the electron.
ms = +1/2, -1/2.
The atomic number of all isotopes of lithium is 3. The isotope doesn't matter because an isotope contains the same protons. All isotopes of a given element share the same atomic number