Math, asked by rudrakshraman06, 9 months ago

The amount of HCl formed when 8g of hydrogen gas (H_(2)) reacts with 142g of chlorine gas (Cl_(2)) is (Atomic mass of Cl=35.5u) H_(2)+Cl_(2)rarr2HCl​

Answers

Answered by hcps00
0

Explanation:

The ratio at which the compounds react with each other are displayed in a chemical reaction as the numbers in front of the compounds. For example in this reaction:

1

H

2

molecule reacts with 1

C

l

2

molecule

Forming

2

H

C

l

molecules.

In chemistry moles are used as a handy number of a certain amount of stuff. You can compare this to a dozen eggs, which is always 12. In the same way 1 mol is the number

6.022

10

23

. This number tells us how many particles there are. So in 1 mol there are

6.022

10

23

particles. This number is also referred to as the constant of Avogadro.

In the question the amount of moles for

H

2

and for

C

l

2

are given. We have to calculate how much

H

C

l

is produced with both these values. Therefore 2 calculations needs to be done.

Because moles just tells us something about the amount of particles we can use the ratio of the reaction to calculate how many

H

C

l

will be produced.

We start of with the 2 moles of hydrogen gas. We know the following now:

1 mole of

H

2

gives 2 moles of

H

C

l

Therefore

2 moles of

H

2

gives 4 moles of

H

C

l

Now this same calculation can be done for the

C

l

2

:

1 mole of

C

l

2

reacts to 2 moles of

H

C

l

, therefore

4 moles of

C

l

2

reacts to 8 moles of

H

C

l

.

Now we see we have 2 different amount of moles for

H

C

l

and the question now is which one should we use?

We must now look at which one of above reactions can occur? So for the 2 moles of

H

2

, we can calculate with the ratio that:

2 moles of

H

2

reacts with 2 moles of

C

l

2

.

We do have 2 moles of

C

l

2

available!

Let's see the other one

4 moles of

C

l

2

reacts with 4 moles of

H

2

But we do not have 4 moles of

H

2

!!

Therefore we can only make 4 moles of

H

C

l

instead of 8 moles.

This situation can be stated as following: The

C

l

2

is abundant.

I hope you are understand my solution

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