Paper 3 chem ....please help meeeee with this question

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GG16
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Hi

Please could someone help me with this question.

So, it is an old Unit 6 question, but in the style of paper 3.

The question is

Compound X contains z moles of water of crystallisation per mole of compound.On the basis of your results, complete the formula for compound X.

My results are correct, and they are that the X contained: K+ Cr+3 and SO4 (-2)

Thank you....
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chano
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would you be able to leave the whole q on here
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GG16
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(Original post by chano)
would you be able to leave the whole q on here
Hi,

Yep here is the link

http://pmt.physicsandmathstutor.com/...%20A-level.pdf

It is Question 1
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BobbJo
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K2SO4.Cr2(SO4)3.zH2O

or KCr(SO4)2.zH2O

or K2Cr2(SO4)4.zH2O

You need the charges to balance
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