Phosphoricacid is produced by reaction with calciumphosphate ore with sulfuric a
ID: 677904 • Letter: P
Question
Phosphoricacid is produced by reaction with
calciumphosphate ore with sulfuric acid. How much
phosphoricacid can one make from exactly one US
ton (2000lbs) of phosphate ore?
a. 574.2 kg
b. 6.33kg
c. 2.52Mg
d. 1263lbs
e. 287.3kg
I know the answer, but I'mnot sure how to get to it.
Explanation / Answer
Ca3(PO4)2 + 3 H2SO4 ----------> 3 CaSO4 + 2 H3PO4 310 g 98 g 310 g of Calcium Phosphate gives 2* 98 g ofAcid 2000 lb ( 907.18 kg) gives = 2* 98 * 907.18 /310 = 573.57 Kg ofAcid. This is the same as the your option (a). I suppose that if youcalculate the weights of the compounds upto two decimal units youwould get a more accurate answer.