Jump to content

calculations- molar concentrations

Aka
in Homework Help

Featured Replies

Hi, I need help with this question

 

what is the molar concentration of 0.50 mol of NaCl dissolved in 0.30L of solution?

 

=moles of solute/leters of solution

=0.50mol/0.30L

=1.7 mol/L

 

Is this correct?

 

and

 

what mass of solute is present in 1.00L of 0.045 mol/L of Ca(oH)2, solution

 

I have no idea how to do this one

For the first one im assuming you rounded up from 1.6666666 so yes that is correct. The second one is pretty much the same of the first.

 

(.045 mol/L) (1.00L)= # of mol

(#of mol) (molar mass)= g solute.

  • Author

thanks for your help

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

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.