Jump to content

Someone check my answer please. :)

nesan
in Inorganic Chemistry

Featured Replies

1. The problem statement, all variables and given/known data

 

The rate of decomposition of hydrogen peroxide was studied at a particular temperature. H2O2(aq) = H2O (l) + 1/2O2(g)

 

The initial concentration of hydrogen

peroxide was 0.200 mol/L. 10.0 s later,

it was measured to be 0.196 mol/L.

 

b) 0.500 L of hydrogen peroxide solution was

used for the experiment. What mass was lost

as O2 bubbled out of solution in this initial

10.0 s interval?

 

2. The attempt at a solution

 

What I did was.

 

0.500 L * 0.200 mol/L = 0.1

 

0.500 L * 0.196 mol/L = 0.098

 

0.1 - 0.098 = 0.002mol

 

0.002 * 16 = 0.032 g

 

What I'm doubting is.

 

0.500 L * 0.196 mol/L = 0.098

 

Won't the volume change after 10 seconds?

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.