Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

bammmitspriss

  • 3 years ago

What is the approximate hydronium ion concentration and hydroxide ion concentration in a cup of tea? Which is higher?

  • This Question is Closed
  1. oldrin.bataku
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 2

    First we need to know the pH of the tea... it can vary greatly but generally it's somewhere around 6.3 or 6.4. Since this is acidic, that means the hydronium ion concentration \([H_3O^+]\) is greater than the hydroxide ion concentration \([OH^-]\). The approximate concentrations agree with this conclusion:$$pH=-\log[H_3O^+]\\6.3=-\log[H_3O^+]\\10^{-6.3}=[H_3O^+]\\\ \\pOH=-\log[OH^-]\\pH+pOH=14\\6.3-\log[OH^-]=14\\\log[OH^-]=-7.7\\\left[OH^-\right]=10^{-7.7}$$

  2. 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