Skip to content
View in the app

A better way to browse. Learn more.

allnurses

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
Discussion

chemistry help

I have too questions that I am having a problem with and I am wondering if someone could help me.

What ion is in excess in acidic acid solutions?

  1. Cl-


  2. H3O+


  3. OH-


  4. Hydroxide


  5. hydrogen gas


A buffer functions to

  1. maintain a pH of 7.0


  2. maintain a neutral pH


  3. maintain a fairly constant pH


  4. decrease chances for survival


  5. dilutes bases


The answers that I chose was b for the first question and c for the second one.

Oh, one more thing I am having a problem writing a pH for a solution with a hydrogen ion concentrating of 3.7 x 10-5

Featured Replies

You are correct, b and c.

Why don't you guess the pH and I will tell you if you are correct?

  • Experts

Your first 2 answers are correct.

pH is equal to the negative log of the hydrogen ion concentration of a solution. I'm not going to do the math for you though.;)

  • Author

I came up with 4.43 log(3.7*10-5)=4.43

Good job. That's what I would put too.

I agree. :yeah:

  • Author

How about these questions are these right?

What is the correct conjugate base for H3PO4?

  1. PO4-3
  2. H2PO4-
  3. Phosphate
  4. HPO4-2
  5. Cl-

I chose number 2

what formula defines pH?

  1. log(H+)
  2. log(OH-)
  3. -log(H+)
  4. -log(OH-)
  5. none of the above

I chose 3

What ion is produced in basic or alkaline solutions?

  1. hydroxide
  2. OH-
  3. Hydrogen
  4. both a&b are correct
  5. none of the above

I chose 4

If a solution has a pH of 3.5, which statement is true?

  1. the solution is acidic
  2. the solution is basic
  3. the solution has excess hydroxide ions
  4. both b&c are correct
  5. you could never drink a solution with a pH of 3.5

I chose 1

Looks like you don't really need our help! I would agree with all your answers.

This thread is being closed due to possible copyright issues. Our TOS agreement states:

Copyrighted Material:

No "spreading of copyrighted Material": Please do not upload, attach or post anything that is copyright or licensed without prior consent of the owner. For example, if you want to post content from an online article, do not post the whole article, post a partial synopsis, and then a link to the source.

I would like to remind the membership that while students can ask for homework assistance in our Nursing Student Assistance forum, posters should not post examination questions or answers, regardless of whether they are standardized tests or tests that may be unique to an individual class or program.

https://allnurses.com/nursing-student-assistance/

Thank you for your cooperation in this.

Guest
This topic is now closed to further replies.

Currently Reading 0

  • No registered users viewing this page.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.