Find the %cl in original mixture

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In summary, the conversation discusses a chemical reaction where a mixture of AgCl and AgBr loses 0.725g in weight after being heated in a current of chlorine. The conversion of AgBr to AgCl is mentioned and the question of the percentage of Cl in the original mixture is raised. The suggested reaction is 2AgBr + Cl2 → 2AgCl + Br2 and the problem is determined not to be a limiting reagent issue. However, there is an error in the data provided, as the mass of the sample after the reaction is negative. The poster is advised to repost the question in a homework forum for further assistance.
  • #1
prat
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a precipitate of agcl and agbr weighs 0.4066gm on heating in a current of chlorine the agbr is conveted to agcl and the mixture loses 0.725gm in weight.find the %cl in original mixture

i tried it from the reaction

2agbr+cl2-2agcl+br2

is the problem on limiting reagent?please help
 
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  • #2
On boy, you should get get bashed for that post.

Your reaction is OK, this is not a limiting reagent problem. Think - you have 1 mole of AgBr - what is its mass? Once you convert it to AgCl - what is its mass? How does mass of 1 mole of salt change when converted? Can you calculate how many moles were converted, knowing what was the mass change?

There is something wrong with your data. If you started with 0.4066 g, and you lost 0.725 g, mass of your sample after reaction is negative.
 
  • #3
You should repost the question in the homework subforum.
 

FAQ: Find the %cl in original mixture

How do you calculate the %cl in an original mixture?

To calculate the %cl in an original mixture, you need to know the amount of chlorine (Cl) present in the mixture and the total amount of the mixture. Divide the amount of chlorine by the total amount of the mixture, then multiply by 100 to get the %cl.

What is the purpose of finding the %cl in an original mixture?

Finding the %cl in an original mixture is important in various industries such as water treatment, chemical manufacturing, and environmental testing. It helps determine the amount of chlorine present in a substance, which can affect its properties and behavior.

Can you use any unit of measurement for the amount of chlorine and the total amount of the mixture?

Yes, as long as the units are consistent. For example, if the amount of chlorine is measured in grams (g), the total amount of the mixture should also be measured in grams (g).

What factors can affect the accuracy of the %cl calculation?

The accuracy of the %cl calculation can be affected by human error, equipment limitations, and sample contamination. It is important to follow proper measurement techniques and use reliable equipment to minimize these factors.

Is it necessary to find the %cl in an original mixture before using it for a specific purpose?

In some cases, it may be necessary to find the %cl in an original mixture before using it for a specific purpose. For example, in water treatment, the amount of chlorine should be within a certain range to effectively disinfect the water. However, in other cases, it may not be necessary and the %cl can be determined at a later stage of the process.

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