Answer to Question #138290 in Chemistry for yara

Question

Calculate the number of mass of phosphoric acid that is produced when 1.45 x1024 molecules of sulfuric acid react with calcium phosphate.

Ca3(PO4)2 + 3H2SO4 à 3CaSO4 + 2H3PO4

Answer 1

1 mole of matter contains 6.02214076×10²³ particles.

Given number of molecules represents: 1.45 x10²⁴ / 6.02214076×10²³ = 2.4 moles

n (H₃PO₄) = 2/3 n (H₂SO₄) = 2/3 x 2.4 = 1.6 moles

n = m/M

M (H₃PO₄) = 98 g/mol

m (H₃PO₄) = n x M = 1.6 x 98 = 156.8 g