Answer:
CH3OH, NaBr, CaCl2, Cr(NO3)3
Based on disorderliness, the ionization strength gives the entropy.
CH3OH - Does not ionize, it's a solvent
NaBr- Ionizes intwo two ions
CaCl2- Ionizes to three ions 1Ca and 2 Cl ions
Cr(NO3)3- Ionizes to four ions
Explanation:
Here is the complete question:.
Rank the following solutes in order of increasing entropy when 0.0100 moles of each dissolve in 1.00 liter of water.
CaCl2, CH3OH, Cr(NO3)3, NaBr
11. <span>Ionic compounds that dissolve in water conduct electricity because they break into ions that move freely.
12. </span><span>Solid metals are good conductors of heat and electricity.
13. </span>Molecular compounds that dissolve in water do not conduct electricity because no charged particles are present.
14. <span>Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is polar.
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15. A metal crystal consists of positively charged metal ions embedded in a "sea" of freely moving valence electrons.
16. <span>The properties of solid metals can be explained by the structure of and the bonding among the metal atoms. = True
17. </span><span>Orderly crystal shapes, high melting points, and electrical conductivity, when dissolved in water, are properties of ionic compounds. = True
18. </span><span>When electrons are transferred between two atoms, a covalent bond is formed. = False (</span><span>When electrons are shared between two atoms, a covalent bond is formed.)
19. </span><span>A low melting point is one property of molecular compounds. = True
20. </span><span>A nonpolar bond is formed when two atoms share electrons unequally. = False (</span><span>a polar bond is formed)</span>
Hydrogen is different from alkali metals because it also exhibits the properties of inert gas
Answer:
the molecular formula is C₁₄H₈O₂
Explanation:
Given that
The freezing point of camphor is lowered by 22.3°C
Amount of anthraquinone is 1.32g
depression constant is 40°C.kg.mol
Use the freezing-point depression equation
Molecular weight of solute, m =
m = 208g/mol
empirical formula of Anthraquinone is C7H4O
empirical formula weight = 104 g/mol
m = Molecular formula weight / empirical formula weight
m = 208 / 104
208.2 / 104.1 = 2
molecular formula = (C₇H₄O)₂
so, the molecular formula is C₁₄H₈O₂