A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

What is the concentration in M of KCl in a solution made by mixing 25.0ml of 0.175M KCl with 50.0ml of 0.175M KCl

  • This Question is Closed
  1. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    How do you think this one is solved?

  2. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i would thing 25 times .175 divided by 50

  3. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thats what i would think also

  4. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it doesnt work though

  5. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    try putting in 0.175 M KCl

  6. Xishem
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    If you mix two solutions with the same concentration, I'd think that the concentration would stay the same. There's no reason it wouldn't. If you separated a 1L sample of .175 M KCl into two 500mL samples, they both will be the same concentration. Put them back together, and they are still .175M. To do it more analytically, try this: Find how many moles of KCl are in each of the two solutions. This is how many moles will be present in the final, mixed solution. Then using the molar concentration equation...\[c_i=\frac{mols\ KCl}{V_{sol'n}}\]And obviously, if you mix a 50mL sample with a 25mL sample, you will get 75mL, assuming the volumes are additive. You'll find that the concentration is indeed the 0.175M.

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.