<span>Effective nuclear charge is an estimate of the charge experienced by the valence electrons.
</span><span>Sulfur has 6 valence electrons and a charge of 6+.
</span><span>The 3s electrons in sulfur are the 3p electrons, because the former spend more time closer to the nucleus.</span>
<span>Using Slater's Rules, effective nuclear charge of sulfur is +5.5.
2) No!</span><span> The Zeff doesn't differ from ions and atoms of the same element.</span>
Answer:
The list of strong, weak and non-electrolytes is given below from the examples listed in the question.
Explanation:
<u><em>A strong electrolyte </em></u>would completely or almost fully dissociate or in aqueous solution; strong acids and bases are generally examples,as well as salts. The following are strong electrolytes:
- Hydrochloric acid, HCl
- Calcium hydroxide, Ca(OH)2
- Potassium chloride, KCl
<em><u>A weak electrolyte</u></em> would only partly be ionized in solution; major examples are weak acids and bases. Examples of such include:
- Methylamine, CH3NH2
- Hydrofluoric acid, HF
<em><u>A non-electrolyte</u></em> will not dissociate in aqueous solution. The following are non-electrolytes:
- Sucrose, C12H22O11
- Methanol, CH3OH
The formula to find yield is
(Actual Yield)/(Theorectical Yield) x100
Just do the math.
85.22% x 113 = 96.2986
Convert it to 3 significant figures
Ans: 96.3g
The molarity of a solution equals to the mole number of the solute/the volume of the solution. For NH4Br, we know that the mole mass is 98. So the molarity is (14/98) mol /0.15 L=0.95 mol/L.
