What is the correct formula and name for the compound formed by Pb2+ and CrO42-?

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SUMMARY

The correct formula for the compound formed by Pb2+ and CrO42- is PbCrO4, known as Lead(II) Chromate. The initial assumption of Pb2(CrO4)2 was incorrect due to the need for the smallest number ratio between the ions. Additionally, it is essential to specify the charge of lead, which is Plumbous in this case, to avoid ambiguity in nomenclature.

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Homework Statement


What is the formula and name of the compound by combining Pb2+ and CrO42-


Homework Equations


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The Attempt at a Solution


I thought it was Pb2(CrO4)2 - Lead Chromate.
Why is this wrong and how do I correct it?
 
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When writing ionic compounds, you use the smallest number ratio between the ions; you don't always "switch" the charges. Instead of a 2:2 ratio, use a 1:1 ratio for the formula, PbCrO4.
The name is wrong because you need to specify the charge of lead since it has a variable charge.
 
By the way...

Pb2+[/sub] = Plumbous
Pb4+[/sub] = Plumbic
 
Is PbCrO4 - Lead II Chromate correct?
 
Looks Ok to me, but Eglish nomenclature is not my forte.
 
That'll work too.

I just prefer the old system.

Lead(II) Chromate is good.
 

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