I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 grams of powdered NaH2PO4. H2O.

Question

thanks

Answer 1

This question makes no sense. What are you trying to replace? No amount H3PO4 will replace the Na, for example, but you could replace the PO4 with an eqivalent amount of H3PO4.

Answer 2

ok, I am try to get an equal amount of phosphorous.
Currently using 6 mls of a 75% liquid phosporic acid for an original equation that uses 5g of powdered phosphoric acid. My new solution is 85% and I wanted to check calculation.