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Mariana [72]
3 years ago
15

Consider the structure of the phosphonium ylide formed by treatment of the following haloalkane with triphenylphosphine followed

by butyllithium. Draw the structure of the alkene formed by reaction of this phosphonium ylide with acetone.
Chemistry
1 answer:
butalik [34]3 years ago
8 0

Answer:

holdon a second let me think, nevermind I don't know this one , sorry

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The equilibrium constant is given for two of the reactions below. Determine the value of the missing equilibrium constant. 2A(g)
monitta

Answer:

The value of the missing equilibrium constant ( of the first equation) is 1.72

Explanation:

First equation: 2A + B ↔ A2B   Kc = TO BE DETERMINED

 ⇒ The equilibrium expression for this equation is written as: [A2B]/[A]²[B]

Second equation: A2B + B ↔ A2B2   Kc= 16.4

⇒ The equilibrium expression is written as: [A2B2]/[A2B][B]

Third equation:  2A + 2B ↔ A2B2     Kc = 28.2

⇒ The equilibrium expression is written as: [A2B2]/ [A]²[B]²

If we add the first to the second equation

2A + B + B ↔ A2B2   the equilibrium constant Kc will be X(16.4)

But the sum of these 2 equations, is the same as the third equation ( 2A + 2B ↔ A2B2)   with Kc = 28.2

So this means: 28.2 = X(16.4)

or X = 28.2/16.4

X = 1.72

with X = Kc of the first equation

The value of the missing equilibrium constant ( of the first equation) is 1.72

7 0
3 years ago
If a buffer solution is 0.250 M 0.250 M in a weak base ( K b = 8.0 × 10 − 5 ) Kb=8.0×10−5) and 0.540 M 0.540 M in its conjugate
Kaylis [27]

Answer:

9.57

Explanation:

Given that:

pK_{b}=-\log\ K_{b}=-\log(8.0\times 10^{-5})=4.1

Considering the Henderson- Hasselbalch equation for the calculation of the pOH of the basic buffer solution as:

pOH=pK_b+log\frac{[conjugate\ acid]}{[base]}

So,  

pOH=4.1+\log\frac{0.540}{0.250}=4.43

pH + pOH = 14  

So, pH = 14 - 4.43 = 9.57

8 0
3 years ago
What are some properties of sand paper
Otrada [13]
Rough, tan, grainy, and scratchy are some
7 0
3 years ago
The natural tendence of an object to resist change in its state of motion is:
Vera_Pavlovna [14]

Answer:

inertia

Explanation:

The principal of inertia explains why objects do not voluntarily change their speed or direction without the influence of an external force. Inertia is not unaffected by other forces in planetary systems such as Earth and is, as such, not really observable on planetary surfaces. This is due to the resistance forces of gravity and friction from both the air and the ground. The drag slows objects down and makes it appear as if a constant force were necessary to keep them in motion.

8 0
3 years ago
Find the mass percent of C6H12O6? <br>important in neet<br>​
Helen [10]

Answer:

In glucose there are 6 carbon atom, atomic weight carbon is 12, so the molar mass is 72 and the percentage composition of carbon in C6H12O6=(72180)×100%=40% percentage by the mass.

3 0
3 years ago
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