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____ [38]
2 years ago
6

(r)-3-bromo-2,3-dimethylpentane will undergo a substitution reaction in the presence of methanol when heat is applied. complete

the mechanism for the
Chemistry
1 answer:
galina1969 [7]2 years ago
5 0

<span>Actually in this substitution reaction, the bromine atom is released from the main carbon chain molecule, and simultaneously the two electrons in the C-Br bond goes to the bromine atom. So we can actually create a bromide ion and a carbocation entity.</span>

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Please I need help on these 3 questions. Thank You.​
Liula [17]

1.

V = 200 mL (volume)

c = 3 M = 3 mol/L (concentration)

First we convert mL to L:

200 mL = 0.2 L

Then we calculate the moles using the formula: n = V × c = 0.2 L × 3 mol = 0.6 mol

Finally, we just use the molar mass of CaF2 to calculate the actual mass:

molar mass = 78 g/mol

The formula is: m = n × mm (mass = moles × molar mass)

m = 0.6 mol × 78 g/mol = 46.8 g

2.

For this question the steps are exactly like the first question.

V = 50mL = 0.05 L

c = 12 M = 12 mol/L

n = V × c = 0.05 L × 12 mol/L = 0.6 mol

molar mass (HCl) = 36.5 g/mol

m = n × mm = 0.6 mol × 36.5 g/mol = 21.9 g.

3.

The steps for this question are the opposite way.

m(K2CO3) = 250 g

molar mass = 138 g/mol

n = m ÷ mm = 1.81 mol

c = 2 mol/L

V = n ÷ c = 1.81 mol ÷ 2 mol/L = 0.905 L = 905 mL

6 0
3 years ago
Why does earth look blue from space
Julli [10]

Answer:

Earth is the only planet in our solar system that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water. Because of this, people sometimes call it the blue planet. Because of its water, Earth is home to millions of species of plants and animals.

Explanation:

Earth is the only planet in our solar system that has a massive quantity of liquid water. About 74% of the surface of Earth is covered with the aid of liquid or frozen water. Because of this, people on occasion name it the blue planet. Because of its water, Earth is domestic to thousands and thousands of species of flora and animals.

8 0
2 years ago
What is somatic cell nucleus transfer??
OleMash [197]
It's just a way to create an ovum with a donor nucleus. It is done by implanting a donor nucleus (from the somatic cell) into an egg cell, or "enucleated oocyte." <span />
3 0
3 years ago
MASS = 10 Kg, Acceleration = 3 m/s/s, Force =
Orlov [11]

Answer:

The force is 30 N

Explanation:

We use the formula F= mx a

F= 10kg x 3m/s2

F= 30kgxm/s2= 30 Newton

7 0
3 years ago
How many valence electrons does the boron family have.
laiz [17]

Answer:

three

Explanation:

Every element in the boron group has three electrons in its outermost shell (so-called valence electrons), and for each element there is a sharp jump in the amount of energy required to remove the fourth electron, reflecting the fact that this electron must be removed from an inner shell.

4 0
2 years ago
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