Question

What is the name of the compound CrPO4 • 4H2O?
I think is chromium(II)phosphate tetrahydrate
can someone check my work?

Answer 1

absolutely right

Answer 2

ok thank you! :)

Answer 3

hold on - i'm sorry
PO4 has 3 - charge
so its Cr(III)PO4 that is chromium (III) phosphate tetrahydrate

P has charge 5+ and 4 O's has charge 8- making PO4 = 3-
so to balance Cr is 3+ or Cr(III)

Answer 4

you follow that? - the compound is neutral so + and - charges must balance

Answer 5

so is not (II) but (III)?