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3 years ago

Propose a reasonable synthesis to get benzylamine from toluene

Chemistry

1 answer:

yawa3891 [41]3 years ago

4 0

Benzyl Amine is synthesized from Toluene in two steps;

Step 1: Bromination of Methyl Group in Toluene:
Bromination is carried out on methyl group present on Benzene ring through free radical mechanism by treating toluene with <span>N-Bromosuccinimide (NBS) and Benzyl Bromide is formed.

Step 2: Benzyl Bromide into Benzyl Amine;
This step is carried out utilizing a neme reaction "Gabriel Reaction". Benzyl bromide is treated with </span>Potassium Phthalamide and an intermediate is formed which on treatment with Hydrazine produces Benzyl amine.

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How many molecules are there in 560 grams of CoCl2?

Marrrta [24]

Answer:

25.89 × 10²³ molecules

Explanation:

Given data:

Mass of CoCl₂ = 560 g

Number of molecules present = ?

Solution:

Number of moles of CoCl₂:

Number of moles = mass/molar mass

Number of moles = 560 g/ 129.84 g/mol

Number of moles = 4.3 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

4.3 mol × 6.022 × 10²³ molecules /1 mol

25.89 × 10²³ molecules

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2 years ago

given the following reaction: CuO (s) + H2 (g) to Cu(s) + H2O (g). If 250 L of hydrogen gas are used to reduce copper (II) oxide

QveST [7]

24g is needed no explanation

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3 years ago

In everyday speech the words precision and accuracy are often used interchangeably. When these terms are used in science are the

padilas [110]

Answer:

No, in science their meanings are not the same as their everyday meanings.

Explanation:

In Science, Precision and Accuracy are defined as,

Accuracy:

Accuracy is the value which is closest to the known or standard value.

Precision:

While, Precision is the value of closeness of two measured values to each other.

Example:

Let suppose in Chemistry Lab you weight an object as 50 g. While the actual weight of that object is 30 g. It means your reading is not accurate.

On second measurement you find that the object weight is 31 g. This time your reading is not precise.

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3 years ago

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antoniya [11.8K]

The balanced chemical reaction:

C3H8 + 5O2 = 3CO2 + 4H2O

We are given the amount of the carbon dioxide to be produced. This will be the starting point of our calculations.

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melamori03 [73]

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