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Chemistry help!
The diagrams below represent the change in the composition of a solution during the titration of 5 M HF with 5 M NaOH. Place the diagrams below in order from the initial solution to the solution at the equivalence point of the reaction.

Chemistry Help The Diagrams Below Represent The Change In The Composition Of A Solution During The Titration Of 5 M HF With 5 M NaOH Place The Diagrams Below In class=

Sagot :

Answer: C, B, A

Explanation:

C is the initial solution, because naoh has not been added yet

B is the midpoint of the titration.  naoh has been added to the solution, but it has not fully reacted yet. You can tell that this one is the midpoint because there is still HF- in the diagram, which is not one of the products formed in the reaction.

A is the endpoint because the diagram shows that all products are fully formed. There is an increased amount of Na+ and H2O in the diagram and no HF- left.  

PS. I tested this answer on the concentration of acetic acid post-lab (from mcgraw hill) earlier today and it said this was the right answer :) hope this helps

The correct sequence of diagram from initial solution to the solution at the equivalence point of the reaction is C → B → A.

What is the equivalence point of the titration?

In the equivalence point of the acid-base titration, amount of acid will equal to the amount of base and no other ions withh present except water and salts.

In the given question there is a titration between an acid (HF) and a base (NaOH).

  • Diagram C shows the initial solution of the reaction as in that only HF acid is present.
  • Diagram B shows the mid step of the reaction, after adding the base (NaOH) on the initial solution. As in this solution with the water molecules, sodium and flouride ions as well as HF is also present.
  • Diagram A shows the equivalence point of the reaction as in this point equal number of ions of acid and base are present with the water molecule.

Hence, correct sequence is C → B → A.

To know more about equivalence point, visit the below link:

https://brainly.com/question/12987597

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