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3 years ago

Given the formula for an organic compound:

Chemistry

2 answers:

miskamm [114]3 years ago

5 0

Answer : The correct option is, (2) ethyl

Explanation :

As per IUPAC rules,

For the number of carbon atom, we add prefix as 'meth' for 1, 'eth' for 2, 'prop' for 3, 'but' for 4, 'pent' for 5, 'hex' for 6, 'sept' for 7, 'oct' for 8, 'nona' for 9 and 'deca' for 10.

A suffix '-ane' is added at the end of the name.

If two of more similar alkyl groups are present, then the words 'di', 'tri' 'tetra' and so on are used to specify the number of times these alkyl groups appear in the chain.

In the given organic formula, the group given the box have 2 carbon chain which named as ethyl.

Hence, the correct option is, (2) ethyl

Dmitriy789 [7]3 years ago

3 0

Based on the picture,
The name given to the group in the box would be : Ethyl

You can see that in the picture it has 2 carbon side chains, which mean it categorized as Ethyl

hope this helps

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Suppose 0.701g of iron(II) chloride is dissolved in 50.mL of a 55.0mM aqueous solution of silver nitrate.

Musya8 [376]

Answer : The molarity of chloride anion in the solution is 0.05 mole/L

Explanation : Given,

Mass of $FeCl_2$ = 0.701 g

Volume of solution = 50 ml = 0.050 L

Molarity of AgCl = 55.0 mM = 0.055 M

Molar mass of $FeCl_2$ = 126.751 g/mole

First we have to calculate the moles of $FeCl_2$ .

$\text{Moles of }FeCl_2=\frac{\text{Mass of }FeCl_2}{\text{Molar mass of }FeCl_2}=\frac{0.701g}{126.751g/mole}=0.00553moles$

Now we have to calculate the moles of $AgNO_3$ .

$\text{Moles of }AgNO_3=\text{Molarity of }AgNO_3\times \text{Volume of solution}=0.055mole/L\times 0.050L=0.00275mole$

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

$FeCl_2(aq)+2AgNO_3(aq)\rightarrow 2AgCl(s)+Fe(NO_3)_2(aq)$

From the balanced reaction we conclude that

As, 2 moles of $AgNO_3$ react with 1 mole of $FeCl_2$

So, 0.00275 moles of $AgNO_3$ react with $\frac{0.00275}{2}=0.001375$ moles of $FeCl_2$

From this we conclude that, $FeCl_2$ is an excess reagent because the given moles are greater than the required moles and $AgNO_3$ is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of $AgCl$ .

As, 2 moles of $AgNO_3$ react to give 2 moles of $AgCl$

So, 0.00275 moles of $AgNO_3$ react to give 0.00275 moles of $AgCl$

Now we have to calculate the molarity of $AgCl$ .

$\text{Molarity of }AgCl=\frac{\text{Moles of }AgCl}{\text{Volume of solution}}$

$\text{Molarity of }AgCl=\frac{0.00275mole}{0.055L}=0.05mole/L$

As we know that, 1 mole of AgCl in solution gives 1 mole of silver ion and 1 mole of chloride ion.

So, the molarity of chloride ion = Molarity of AgCl = 0.05 mole/L

Therefore, the molarity of chloride anion in the solution is 0.05 mole/L

7 0

3 years ago

Wer the following questio What is meant by a solutio What is a saturated solutio Define: give an example.

Nana76 [90]

Answer:

A solution in which the maximum amount of solvent has been dissolved. Any more solute added will sit as crystals on the bottom of the container.

Explanation:

A solution in which the maximum amount of solvent has been dissolved. Any more solute added will sit as crystals on the bottom of the contain

er.

3 0

3 years ago

What is an ion and how does it form? What are the two types of ions

vladimir2022 [97]

Answer:

Ions form when an atom gains or loses electrons in order to find a more stable configuration.There are two types of ions cations and anions

Explanation:

hope this helps if not let me know have a blessed day

4 0

1 year ago

Watch the animation depicting Rutherford's experiment and choose which of the following conclusions are correct.Check all that a

Blababa [14]

Answer:

1. The mass of an atom is concentrated at the nucleus.

3. Positive charge is condensed in one location within the atom.

4. The majority of the space inside the atom is empty space.

6. The atom contains a positively charged nucleus.

Explanation:

When J.J Thmpson discovered the electron, he depicted the atom by the plum pudding model: a solid dough of homogeneously distributed positive charge (the pudding) containing negatively charged electrons (the plums).

Later, the scientist Ernest Rutherford, with its experiment of the gold foil experiment showed that the subatomic particles where not all concentrated in a solid part.

When a thin gold foil was bombarded with alpha particles (positively charged nuclei of helium atoms), most of the particles went through the gold sheet, with little deviation, but some particles bounded with a high deviation.

Such few high deviations were explained by the fact that there was a heavy region in the atom (the core or nucleus) with the positive charge that repelled the positively charged alpha particles.

Thus, the mass of the atom was conentrated at the nucleus (choice 1), where the positive charge is distributed in one location, which is the nucleus (not over the entire atom, just on the nucleus) discarding the choice number 2 (that a positive charge is spread equally over the atom) and proving choices 3 (the positive charge is condensed in one location within the atom) and 6 (the atom contains a positively charged nucleus).

Since most of the particles indeed went through the nucleus, this nucleus has to occupy little space, and most of the atom was empty space, proving choice 4 (the majority of the space inside the atom is empty space).

6 0

3 years ago

Match each section of the atomic structure

Lesechka [4]

<>"Atomic particles. Protons and neutrons are heavier than electrons and reside in the nucleus at the center of the atom. Electrons are extremely lightweight and exist in a cloud orbiting the nucleus. The electron cloud has a radius 10,000 times greater than the nucleus."<>

4 0

3 years ago

Read 2 more answers