A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

vera_ewing

  • one year ago

What is the concentration of hydrogen ions in solution when 0.30 mol of nitric acid are dissolved in enough water to make 500.0 mL of solution? A. 0.60 M B. 0.15 M C. 0.30 M D. 1.2 M

  • This Question is Closed
  1. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Cuanchi

  2. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Australopithecus

  3. cuanchi
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what is your answer and how did you calculate it?

  4. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Nitric acid is a strong acid so it fully dissociates into Nitrate and Hydrogen i.e. HNO3 -> H+ + -NO3 Secondly you need to use the formula: Molarity = Moles/Liters

  5. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    to find the molarity of hydrogen

  6. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Do you follow?

  7. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So the molarity of hydrogen is 0.0006?

  8. cuanchi
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    NO, the volume has to be in L you have to convert the mL to L

  9. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    1L = 1000mL

  10. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so to convert: multiply 500mL by (1L/1000mL) note when you multiply mL cancels out and you are left with just liters

  11. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    This works for almost all units

  12. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Unit conversion is important to know

  13. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    There are tons of youtube videos on the topic

  14. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    it works the same as exponent division

  15. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Show me your math

  16. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    0.60 because Molarity = moles of solute/Liters of solution (500.0 mL = 0.5 Liters) M = 0.30 moles HNO3/0.5 L = 0.60 M H + ions in solution

  17. vera_ewing
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The concentration of the nitric acid solution is 0.60 M, and the nitric acid will dissociate completely to H+ (aq) and NO3- (aq). This means the hydrogen ion concentration is equal to the starting concentration of the acid.

  18. Australopithecus
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yup

  19. 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.