What is the mass percent of hydrogen in ammonium phosphate, #(NH_4)_3PO_4#? Chemistry The Mole Concept Percent Composition 1 Answer anor277 May 1, 2016 #"Mass of hydrogen"/"Mass of ammonium phosphate"# #xx100%=??%# Explanation: #(3xx1.00794*g*mol^-1)/(149.09*g*mol^-1)xx100%# #""approx# #2%# Answer link Related questions What is mole percent? Question #e2e8b Question #bc737 Question #bc73b Question #e2e8f Question #b9857 Question #b985b Question #fee41 Question #c5c01 Question #bc73f See all questions in Percent Composition Impact of this question 6278 views around the world You can reuse this answer Creative Commons License