# Ideal gas equation

Watch
Announcements
Thread starter 3 months ago
#1
9. Lead (IV) oxide dissolves in concentrated hydrochloric acid according to the following equation:
PbO2(s) + 4HCl(aq) à PbCl2(s) + Cl2(g) + 2H2O(l)

Starting with 37.2 g of lead (IV) oxide, calculate:

a) the volume of 12 moldm-3 HCl needed to completely dissolve it

b) the mass of PbCl2 produced

c) the volume of chlorine produced at 298 K and 100 kPa.

I am stuck on this question could someone please help me, thanks.
0
3 months ago
#2
(Original post by Suki123z)
9. Lead (IV) oxide dissolves in concentrated hydrochloric acid according to the following equation:
PbO2(s) + 4HCl(aq) à PbCl2(s) + Cl2(g) + 2H2O(l)

Starting with 37.2 g of lead (IV) oxide, calculate:

a) the volume of 12 moldm-3 HCl needed to completely dissolve it

b) the mass of PbCl2 produced

c) the volume of chlorine produced at 298 K and 100 kPa.

I am stuck on this question could someone please help me, thanks.
Which part exactly are you stuck on?
0
3 months ago
#3
(Original post by Suki123z)
9. Lead (IV) oxide dissolves in concentrated hydrochloric acid according to the following equation:
PbO2(s) + 4HCl(aq) à PbCl2(s) + Cl2(g) + 2H2O(l)

Starting with 37.2 g of lead (IV) oxide, calculate:

a) the volume of 12 moldm-3 HCl needed to completely dissolve it

b) the mass of PbCl2 produced

c) the volume of chlorine produced at 298 K and 100 kPa.

I am stuck on this question could someone please help me, thanks.
a) work out mol of lead oxide (mol = mass / Mr), determine ratio of lead oxide : HCl from equation, work out volume (in dm3) by rearranging mol = c x v
b) as above
c) 298K and 100kPa is room temp and pressure. 1 mol of any gas occupies 24.0 dm3 under these conditions. Work out mol of chlorine following method above and then scale up / down from 24.0.
0
X

new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Have you experienced financial difficulties as a student due to Covid-19?

Yes, I have really struggled financially (21)
13.55%
I have experienced some financial difficulties (42)
27.1%
I haven't experienced any financial difficulties and things have stayed the same (64)
41.29%
I have had better financial opportunities as a result of the pandemic (23)
14.84%
I've had another experience (let us know in the thread!) (5)
3.23%