1 Ounce = 28.3495231 Grams
<span>1 Troy Ounce = 31.1034768 Grams</span>
The amount of heat, H, needed to boil off certain mass, m, of the substance is given by the equation,
H = mHv
where Hv is the heat of vaporization. Manipulating the equation, the mass is calculated by,
m = H/Hv
Substituting the known values,
m = 15000 J/(850 J/g) = 17.65 g
Thus, the mass of ethyl alcohol is approximately 17.65 g.
A supersaturated solution contains more solute at a given temperature than is needed to form a saturated solution.
Increased temperature usually increases the solubility of solids in liquids.
For example, the solubility of glucose at 25 °C is 91 g/100 mL of water. The solubility at 50 °C is 244 g/100 mL of water.
If we add 100 g of glucose to 100 mL water at 25 °C, 91 g dissolve. Nine grams of solid remain on the bottom. We have a saturated solution.
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Removal of the loosely bounded electron is defined by the ionization energy. Chlorine needs less energy to add electrons and has higher ionization power. Thus, option A is correct.
<h3>What is ionization energy?</h3>
The ability of an electron to accept or give electrons to another element in a chemical reaction by forming and creating bonds and the positive and negative charges has been defined by the ionization energy.
Magnesium has lower ionization energy than chlorine due to its large size and smaller nuclear charge. On the other hand, chlorine can easily add electrons to the valence shell which is almost full.
Therefore, option A. chlorine has higher ionization energy and can add electrons with minimum energy.
Learn more about ionization energy here:
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