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AnnZ [28]
4 years ago
6

Assuming no other changes, what is the effect of doubling only the concentration of the alkyl halide in the above SN2 reaction?

Chemistry
1 answer:
sertanlavr [38]4 years ago
4 0

Answer:

D) doubles the rate

Explanation:

The given reaction is :

$CH_3Br + OH^- \rightarrow CH_3OH+Br^-$

For the SN^2 reaction, the rate of reaction depends upon the concentration of both the $\text{alkyl halide}$ as well as the \text{nucleophile.}

That is the rate = $k[CH_3Br][OH^-]$

Now if the $[CH_3Br]$ becomes $2[CH_3Br]$, then the rate becomes double.

So the rate' is :

= $2k[CH_3Br][OH^-]$

= 2 x rate

Therefore, the answer is (D) doubles the rate.

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The molecular mass of a substance is defined as the mass of how many molecules of the substance
vredina [299]

Answer:

Explanation: The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance

6 0
3 years ago
(a) calculate the %ic of the interatomic bond for the intermetallic compound tial3. (b) on the basis of this result, what type o
Mrrafil [7]

Answer :

The correct answer is  %IC = 10 % and bond is  covalent  bond with slight polarity.

<u>Percent Ionic Character :</u>

It is defined as percent of ionic character present in a  polar covalent bond . The formula   of % ionic character (%IC) is given as follows :

Percent Ionic character = 1 - e^-^0^.^2^5 ^*^(^X^a^-^X^b^) * 100

Where Xa = Electronegativity of A atom   and Xb = Electronegativity of B atom

Given : Molecule is TiAl₃

Electronegativity of Ti = 2.0

Electronegativity of Al = 1.6 ( From image shared )

Plug the value  in  above formula :

Percent Ionic character = 1 - e^-^0^.^2^5 ^*^(^2^.^0^-^1^.^6^) * 100

Percent Ionic character = 1 - e^(^-^0^.^2^5 ^*^0^.^4^) * 100

Percent Ionic character = 1 - e^(^-^0^.^1^) * 100

Value of e⁻¹ = 0.90

Percent ionic character = 1 - 0.90 * 100

Percent Ionic character = 10 %

<u>Since the % IC is 10 % , which is very less comparatively , hence the bond is covalent and  very less polar .</u>

8 0
3 years ago
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and
crimeas [40]

Answer:

B) The farther away from the Sun, the thinner a planet's atmosphere. Closer planets need more protection from the heat.

Explanation:

The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets.

6 0
4 years ago
Read 2 more answers
A scientist is studying a chemical reaction. She predicts that after the reaction the product will have less chemical potential
Nady [450]
Hello!

A reaction where the products have less chemical potential energy than the reactants had originally is called an exothermic reaction. Although the scientist didn't observe light or sound, an observation that would support her prediction is the rise in temperature after the reaction has completed. Exothermic reactions release energy in the form of heat, and the temperature would rise in an exothermic reaction.

Have a nice day!
3 0
4 years ago
What’s the answer to this? <br> (2.8 x 10^4) (5.05 x 10^-6)
Verizon [17]
The answer is

14.14 x 10^-2
8 0
3 years ago
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