[Era2k]

An unknown salt contains Barium and one of the halogenions (F^-, Cl^-, Br^-, or I-).

One solves 0,158 grams of this salt in water and adds abundance of sulfuric acid.

All bariumions will then come out as solid bariumsulfat (BaSO₄). By adding abundance of sulfuric acid, 0.124 grams of BaSO₄ were produced.

What is the formula of the unknown salt?


Kindly help me out. And if possible, write it on paper so that I can easier follow it step by step. But whatever works. Beggars can't be choosers.

[sjb]

How many moles of barium sulfate did you recover? How many moles of barium halide did you start with?

[Era2k]

This is all the info given.

If your post is a pointer, then once I am done with other stuff I am doing, I will calculate those. Long day ahead.

[Era2k]

How do I tackle how many moles Ba(X-halide) I started with?

 I've managed to find the amount of moles of BaSO₄ since I know what they are. However there is an unknown halide, I know there is a way and that I can still find moles..

Point me in the proper direction guys ..

[DrCMS]

Where did all the Barium in the Barium Sulphate come from?
How many moles of Barium are in 1mole of Barium Sulphate?
How many moles of Barium are in 1mole of Barium Halide?
How many moles of Halide are in 1 mole of Barium Halide?
If you know how many moles of Barium Sulphate you ended up with can you calculate how many moles of Barium Halide you started with?
If you know how many moles of Barium Halide you started with and the weight of the Barium Halide can you calculate the molecular weight of the Halide and so determine if it is F, Cl, Br or I?