Answer:
2.73 M
Explanation:
The<em> balanced reaction that takes place</em> is:
MnO₄⁻ + 8H⁺ + 5Fe²⁺ → Mn²⁺ + 5Fe⁺³ + 4H₂O
Moles of MnO₄⁻ that reacted = 0.265 M * 38.65 mL = 10.24 mmol MnO₄⁻
Moles of Fe²⁺ that reacted = 10.24 mmol MnO₄⁻ * = 51.21 mmol Fe²⁺
Molarity of Iron (II) = 51.21 mmol Fe²⁺ / 18.78 mL =2.73 M
5 .....................................
Answer:
M KIO3 = 1.254 mol/L
Explanation:
∴ w KIO3 = 553 g
∴ mm KIO3 = 214.001 g/mol
∴ volumen sln = 2.10 L
⇒ mol KIO3 = (553 g)×(mol/210.001 g) = 2.633 mol
⇒ M KIO3 = (2.633 mol KIO3 / (2.10 L sln)
⇒ M KIO3 = 1.254 mol/L
Anions are solvated in protic hydrogen-bonding solvents (such as ethanol). Consequently, nucleophiles are less reactive. Since soft nucleophiles are less strongly solvated than hard nucleophiles, these solvents boost the relative reactivity of soft anions.
<h3>
Ethanol is either a nucleophile or a base.</h3>
The ethanol is a base Because carbocation is an extremely reactive species, a base or nucleophile as weak as ethanol can replace or remove it. SN1 and E1 would not be conceivable without the carbocation or a strong departing group.
<h3>How do solvents impact anionic nucleophile's reactivity?</h3>
In polar aprotic solvents, nucleophilic substitution reactions of anionic nucleophiles often proceed more quickly. The normal relative reactivity order in such solvents (like DMSO)is Anions are solvated in protic hydrogen-bonding solvents (such as ethanol). Consequently, nucleophiles are less reactive.
Learn more about nucleophiles here:-
brainly.com/question/27127109
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A or D are the most logical answers but D seems stronger as its more specific