A Chemistry Question-help please??

Former Member

I dont know what level this is as its for a pharmacy BTec, but im really stuck with this question and id be very grateful for some help!!

Titanium is manufactured by heating titanium (IV) chloride with sodium;

TiCl4+Na

---

>Ti+NaCl

What mass of sodium is required to produce 1 tonne of titanium??

The answer is 1.22, apparently, but i need to show i can work it out.

thanks

Former Member

Something to do with atomic weights isn't it? You have to work out the values. So long ago I did Chemistry.

tum te tum.

Bunnie

i feel very stupid

Bunnie

xsazx wrote: »

aww tis only gcse science ... pointless all the same

I got two Es in Dual Award Go me! woo!

it was the higher paper so in theory I shouldnt have got that, I should have auto got a U - but let's keep that hush hush!

Former Member

i had B B in dual award and i haven't got a fricking clue what any of that meant

i also did higher paper and i feel a bit thick now, lol

Former Member

huh? lol!!

Thank you.

I got a BB in gcse science and i dont remember any of this being in it!! It was 8 years ago though!

I dont get where the 907184.78g comes from though?

Former Member

The nations of the earth are nothing more than a film of dust on a weighing scale.

Former Member

first of all you need to add the right coefficients to that fomula.

TiCl4 + 4 Na --> Ti + 4 NaCl

every element has to appear on the left and right side of the equation. So as you can see you need 4 times the amount of sodium than TiCl4 so this reaction works. (not weight wise, but 4 times the amount of mol, or however you say that in english).

Ti weighs 48grams per mol.
So one ton of Titan is 20833 mol.

Since you need 4 times the amount of Sodium you need 83333 mol Sodium, which is at 23grams per mol, 1.916 tons of Sodium.

It might be wrong since it's late and I am overworked, but you get the idea.

Former Member

I get ya, thanks. Oops, i copied out the question, but forgot to change it because the first question was to balance it. (i did that bit)

When i worked it out i was getting 1.9 aswell, but we've already been told that its 1.22.

confused!!

Former Member

Sikorah wrote: »

I get ya, thanks. Oops, i copied out the question, but forgot to change it because the first question was to balance it. (i did that bit)

When i worked it out i was getting 1.9 aswell, but we've already been told that its 1.22.

confused!!

You know you're right, so screw all the other airheads =P

Skive

I've got an A level in chemistry but Im lost. I havn't done any calculations like that for years and I'm hungover.

Former Member

Welsh Jemz wrote: »

i had B B in dual award and i haven't got a fricking clue what any of that meant

i also did higher paper and i feel a bit thick now, lol

Same goes. Science was one of my weak points. My brain is just not geared up to cope