Superphosphate, a water soluble fertilizer, is sometimes marked as a "triple phosphate". It is a mixture of Ca(H2PO4)2 + 2CaSO4.
Ca3(PO4)2 + 2H2SO4 --> Ca(H2PO4)2 + 2CaSO4
If you treat 400g of calcium phosphate with 267g of sulfuric acid, how many g of superphosphate can be formed?
My question is, if this entire thing is superphosphate --> Ca(H2PO4)2 + 2CaSO4, do I have to add the mass of both Ca(H2PO4)2 and 2CaSO4? I've found the mass of Ca(H2PO4)2 to be 300g.
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Yes. You find the mass of Ca(H2PO4)2 and add that to the mass of CaSO4 to find the mass of the "superphosphate".
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