2009 Chemistry paper 3 doubt

[vampire542]

http://www.xtremepapers.me/CIE/Cambridg ... 9_qp_3.pdf
i have a problem is question 5 part b in the first variant...can anybody help me out with why the answer should be t3po4..?

 

[OrlandoBloom<3]

I have the same doubt if someone could please explain it to us

 

[xIshtar]

I have seen many people ask about Question 5.b)

So, I thought I would explain it to everyone here

From the graph, 8cm^3 of the Phosphate reacts fully with 12cm^3 of T Nitrate.

So, identifying only the atoms we need:

T : Phosphate

Taking a ratio of volumes:

8 : 12

Multiply to find the LCM of both sides.

3T : 2 Phosphate

=> Equal volumes:

24 : 24.

This implies that the formula is T3(PO4)2

If anyone has any other questions, I'll do my best

 

[Keeemoman]

I have seen many people ask about Question 5.b)

So, I thought I would explain it to everyone here

From the graph, 8cm^3 of the Phosphate reacts fully with 12cm^3 of T Nitrate.

So, identifying only the atoms we need:

T : Phosphate

Taking a ratio of volumes:

8 : 12

Multiply to find the LCM of both sides.

3T : 2 Phosphate

=> Equal volumes:

24 : 24.

This implies that the formula is T3(PO4)2

If anyone has any other questions, I'll do my best

Thats what I was going to say
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