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3 years ago

Which occurs at a larger a wavenumber

Chemistry

1 answer:

pav-90 [236]3 years ago

8 0

Answer:

The C-O stretch of phenol

Explanation:

Electron delocalization causes the of the phenol to have partial double bond character, whereas the of the cyclohexanol is a pure single bond. Again, we know as the bond order or bond strength increases the absorption occurs at larger wave number. So, the stretch of the phenol occurs at larger wave number.

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A 50-gram sample has a half-life of 12 days. How much material will remain after 12 days?

Elis [28]

A 50-gram sample with a half-life of 12 days will have a remaining mass of 25 grams after its 12-day half-life. Every cycle of a half-life, the sample will lose half of its mass, so if the half-life, itself, is 12 days and the time period passing is 12 days, one half-life has passed and the material will be halved.

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3 years ago

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If a reaction mixture contains only n 2o and no2 at partial pressures of 1.0 atm each the reaction will be spontaneous until som

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3 years ago

Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other h

defon

Answer: m = 0.42; Tb = 79°

Explanation: The relationship between boiling point of the solvent above a solution is directly proportional to the molal concentration of the solute, i.e.:

ΔT = $K_{b}.m$

where

ΔT is the change in boiling point of the solvent;

$K_{b}$ is the molal boiling point elevation constant;

m is the molal concentration of the solute in the solution;

For there two solutions:

1) Ethanol:

ΔT = $K_{b}.m$

Tb - $T_{normal} = K_{b}.m$

Tb - 78.4 = 1.22.m (1)

2) Carbon Tetrachloride:

Tb - $T_{normal} = K_{b}.m$

Tb - 76.8 = 5.03.m (2)

Solving the system of equations:

Tb - 78.4 = 1.22.m

Tb = 1.22.m + 78.4 (3)

Substituing (3) in (2)

1.22.m + 78.4 - 76.8 = 5.03m

3.81m = 1.6

m = 0.42

With m, find Tb:

T - 76.8 = 5.03.0.42

T = 2.11 + 76.8

T = 79°

Molal concentration is 0.42 and boiling point is 79°

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3 years ago

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vladimir1956 [14]

Answer:

Mass + Atomic number. Sorry if I'm wrong I haven't been studying chem lately

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3 years ago

Which statement is true?

Rashid [163]

Answer:

use research

Explanation:

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3 years ago

Which occurs at a larger a wavenumber​

Which occurs at a larger a wavenumber