Question

Aflati raportul atomic si raportul de masa pt urmatoarele substante...Al(NO3)3, Mg(OH)2, Li3PO4, BaCO3, Al2(SO4)3...!!! Va rog ajutati.ma imi trebuie repede..!!!!! DAU COROANA...!!!!

Answer 1

rap.atm Al(NO3)3->Al:N3:O9

->1:3:9

rap.de masă->Al(NO3)3 =27:14×3:9×16

=27:42:144

rap.atm->Mg(OH)2->Mg:O2:H2->1:2:2

rap.de masă ->Mg(OH)2

=24:16×2:1×2

=24:32:2/:2

=12:16:1

rap.atm Li3PO4->Li3:P:O4->3:1:4

rap de masă->Li3PO4

=7×3:31:16×4

=21:31:64

rap.atm BaCO3->Ba:C:O3->1:1:3

rap.de masă->BaCO3

=137:12:16×3

=137:12:48

rap.atm Al2(SO4)3->Al2:S3:O12=2:3:12

rap.de masă->Al2(SO4)3

=27×2+32×2+16×12

=54:64:192/:2

=27:32:96