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Dvinal [7]
3 years ago
13

The following data is collected after eluting a TLC plate containing three sample spots (A, B, and C): distance traveled by comp

ound A = 32 mm, distance traveled by compound B = 48 mm, distance traveled by compound C = 18 mm, distance traveled by solvent front = 64 mm and length of the TLC plate = 70 mm. What is the Rf value of compound C? Enter your answer using the proper number of significant figures.
Chemistry
1 answer:
RideAnS [48]3 years ago
3 0

Answer:

Rf = 0.26

Explanation:

The Rf value is calculated by dividing the distance traveled by a compound, by the distance traveled by the solvent front. In other words, the length of the TLC plate is not relevant in calculating a Rf value.

  • Distance traveled by compound C = 18 mm
  • Distance traveled by the solvent front = 70 mm
  • Rf = 18/70 = 0.26
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10
MAVERICK [17]

The equilibrium constant (K) : 11.85

<h3>Further explanation</h3>

Given

Reaction

N₂(g) + 3H₂(g) ⇒ 2NH₃(g)

Required

K(equilibrium constant)

Solution

The equilibrium constant (K) is the value of the concentration product in the equilibrium

The equilibrium constant based on concentration (K) in a reaction  

pA + qB -----> mC + nD  

\tt K=\dfrac{[C]^m[D]^n}{[A]^p[B]^q}

For the reaction above :

\tt K=\dfrac{[NH_3]^2}{[N_2][H_2]^3}\\\\K=\dfrac{0.1^2}{0.25\times 0.15^3}\\\\K=11.85

6 0
3 years ago
What can be determined from the frequency and wavelength of a wave?
insens350 [35]

Answer:

yeah it's b

Explanation:

The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength. ... The speed of sound in a medium is determined by a combination of the medium's rigidity (or compressibility in gases) and its density.

4 0
3 years ago
Water alone does not easily remove grease from dishes or hands because grease is nonpolar and water is polar. The addition of so
rewona [7]

Answer:

Micelle Formation

Explanation:

The soap molecule has a nonpolar and a polar cationic end when it is dissolved in water. When it dissolves in water, the sodium stearate congregates to form small spheres (called micelles) with the on the inside and the on the surface. The anionic end can attract and interacts with the polar water molecules, while the interact with the nonpolar grease. This allows the soapy water to remove the grease by trapping the grease inside the micelle.

3 0
3 years ago
Hi ndzjfndzlkfmaspodje-sapd
Setler [38]

Answer:

hey

Explanation:

5 0
3 years ago
A reaction rate increases by a factor of 655 in the presence of a catalyst at 37°C. The activation energy of the original pathwa
irinina [24]

For a reaction rate that increases by a factor of 655 in the presence of a catalyst at 37°C, the activation energy of the new pathway  is mathematically given as

Ea2=89.28JKoule/mol

<h3>What is the activation energy of the new pathway, all other factors being equal?</h3>

Generally, the equation for the rate constant  is mathematically given as

K=Ae^{Ea1/Rt}

Therefore

\frac{1}{655}=\frac{1}{8.31*3.10}(Ea2-105000)

Ea2=89286.083Joule/mol

In conclusion, the activation energy

Ea2=89.28JKoule/mol

Read more about Energy

brainly.com/question/13439286

5 0
3 years ago
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